Jump to content

20 Years Ago: First Image of Earth from Mars and Other Postcards of Home


Recommended Posts

  • Publishers
Posted

On March 8, 2004, the Mars Exploration Rover Spirit took the first image of Earth from the surface of another planet. The Earth appearing as nothing more than a bright star provided a new perspective on our home planet, a perspective reshaped over the past eight decades as cameras aboard rockets and spacecraft traveled farther and farther away. From sounding rockets in the 1940s and Earth orbiting satellites in the early 1960s to spacecraft and people traveling to the Moon in the late 1960s and early 1970s and since then to spacecraft exploring all reaches of our solar system, the images of Earth they sent back expanded our horizons while showing an ever-smaller pale blue dot in the vastness of space.

The Mars Exploration Rover Spirit photographed Earth before sunrise in 2004 The Mars Science Laboratory Curiosity rover photographed the Earth-Moon system in 2014
Left: The Mars Exploration Rover Spirit photographed Earth before sunrise in 2004. Right: The Mars Science Laboratory Curiosity rover photographed the Earth-Moon system in 2014.

Shortly after landing in Mars’ Gusev Crater on Jan. 4, 2004, Spirit began sending to Earth remarkable photos of its surroundings. On March 8, it turned its camera skyward in an attempt to photograph the Martian moon Deimos partially eclipsing the Sun as it transited across its disc. Shortly before sunrise, Spirit’s camera managed to capture Earth as a bright star, appearing much as Venus does to terrestrial observers. This marked the first photograph of Earth from another planetary surface. Nearly a decade passed before another rover, the Mars Science Laboratory Curiosity, took another photograph of Earth from its location in Mars’ Gale Crater. The image taken on Jan. 31, 2014, from 99 million miles away, also captured the Moon. These images, and others taken of Earth from ever-more distant vantage points over the past eight decades, provided a new perspective of our home planet’s place in our solar system. Enjoy the following postcards of Earth over the decades.

The first image of Earth taken from space in 1946 by a suborbital rocket, from an altitude of 65 miles The first photograph of Earth taken from orbit, by the Explorer 6 satellite The first television image of Earth, transmitted by the TIROS-1 weather satellite in 1960
Left: The first image of Earth taken from space in 1946 by a suborbital rocket, from an altitude of 65 miles. Image credit: courtesy White Sands Missile Range/Applied Physics Laboratory. Middle: The first photograph of Earth taken from orbit, by the Explorer 6 satellite. Right: The first television image of Earth, transmitted by the TIROS-1 weather satellite in 1960.

On Oct. 24, 1946, more than 10 years before the launch of the first artificial satellite Sputnik, scientists at the White Sands Missile Range in New Mexico placed a camera on top of a captured German V-2 ballistic missile. As the rocket flew to an altitude of about 65 miles – just above the generally recognized border of outer space – the 35-mm motion picture camera snapped a frame every one and a half seconds. Minutes later, the missile came crashing back down and slammed into the ground at more than 340 miles per hour, but the film survived and gave us our first glimpse of Earth from space. On Aug. 14, 1959, the Explorer 6 satellite took the first photograph of Earth from orbit about 17,000 miles high, but the image lacked detail. On April 1, 1960, from an orbital altitude of about 450 miles, the TIROS-1 weather satellite returned the first of its 23,000 television images of the Earth, most of them of sufficient quality for the satellite’s main purpose, weather forecasting.

The first full-disk photograph of Earth, taken by the Soviet Molniya 1-3 communications satellite in 1966 The first image of Earth taken from geostationary orbit, by the Advanced Technology Satellite-1 (ATS-1) satellite in 1966 The first color image of the full Earth from the DODGE (Department of Defense Gravity Experiment) satellite in 1967
Left: The first full-disk photograph of Earth, taken by the Soviet Molniya 1-3 communications satellite in 1966. Middle: The first image of Earth taken from geostationary orbit, by the Advanced Technology Satellite-1 (ATS-1) satellite in 1966. Right: The first color image of the full Earth from the DODGE (Department of Defense Gravity Experiment) satellite in 1967.

The Soviet Molniya 1-3 communications satellite took the first photograph showing the Earth as a full disk on May 30, 1966, although the image quality was somewhat poor. On Dec. 11, 1966, the ATS-1 advanced technology satellite beamed back the first photograph of Earth from geostationary orbit 22,300 miles above Ecuador. The Department of Defense Gravity Experiment (DODGE) satellite returned the first color image of the full Earth in August 1967.

The original photo, top, of Earth taken from lunar orbit by the Lunar Orbiter 1 spacecraft in 1966, and a 2008 digitized version by the Lunar Orbiter Image Recovery Project (LOIRP) The first color image of Earth taken from the surface of the Moon by Surveyor 3 in 1967
Left: The original photo, top, of Earth taken from lunar orbit by the Lunar Orbiter 1 spacecraft in 1966, and a 2008 digitized version by the Lunar Orbiter Image Recovery Project (LOIRP). Image credit: courtesy LOIRP.  Right: The first color image of Earth taken from the surface of the Moon by Surveyor 3 in 1967.

The primary purpose of early robotic spacecraft to the Moon was to prepare for the crewed Apollo missions that followed, including extensive photography of the lunar terrain from orbit and from the surface. The first of five Lunar Orbiter spacecraft designed to map the Moon’s surface from orbit took the first photograph of Earth from lunar distances on Aug. 23, 1966. A digital reconstruction of the original frame in 2008 as part of the Lunar Orbiter Image Recovery Project removed the scan lines and other imperfections. The Surveyor 3 robotic lander, later visited by the Apollo 12 astronauts, took the first photograph of Earth from the lunar surface on April 30, 1967.

The famous Earthrise photograph taken during the Apollo 8 crew’s first orbit around the Moon in 1968 The first photograph of Earth taken by an astronaut standing on the lunar surface, taken during the Apollo 11 Moon landing in 1969 The famous Blue Marble image taken by Apollo 17 astronauts on their way to the Moon in 1972 Earth and Moon photographed during the Artemis I uncrewed mission in 2022
Left: The famous Earthrise photograph taken during the Apollo 8 crew’s first orbit around the Moon in 1968. Middle left: The first photograph of Earth taken by an astronaut standing on the lunar surface, taken during the Apollo 11 Moon landing in 1969. Middle right: The famous Blue Marble image taken by Apollo 17 astronauts on their way to the Moon in 1972. Right: Earth and Moon photographed during the Artemis I uncrewed mission in 2022.

The Apollo missions of the late 1960s and early 1970s returned thousands of stunning and memorable images of humanity’s first exploration of another world. Among them are photographs of the Earth taken by the astronauts that show how small and fragile our planet can appear against the blackness and vastness of space. Arguably, the most famous is the Earthrise photos taken during Apollo 8, the first crewed mission to orbit the Moon in December 1968. The image of the smooth blue ball of Earth appearing suspended over the battered gray lunar terrain provided inspiration for the ecology movement of the time. In July 1969, the first human lunar landing mission, Apollo 11, returned many iconic photographs of Neil A. Armstrong and Edwin E. “Buzz” Aldrin on the surface, and also included the first image of the Earth taken by an astronaut on the Moon. In December 1972, astronauts on the final Apollo lunar landing mission, Apollo 17, took the famous Blue Marble image of the Earth from 72,000 miles away on their way to the Moon. More recently, in November 2012, the uncrewed Artemis I mission imaged the Moon and Earth together, from a distance of 268,563 miles from Earth.

A composite of two separate images of the Earth and Moon, taken by Mariner 10 in 1973 as it headed toward encounters with Venus and Mercury The first image of the Earth-Moon system in a single photographic frame taken by Voyager 1 in 1977 as it departed on its journey to explore Jupiter, Saturn, and beyond The first image of Earth taken by a planetary spacecraft, Galileo, as it made a return encounter with its home planet for a gravity assist in 1990
Left: A composite of two separate images of the Earth and Moon, taken by Mariner 10 in 1973 as it headed toward encounters with Venus and Mercury. Middle: The first image of the Earth-Moon system in a single photographic frame taken by Voyager 1 in 1977 as it departed on its journey to explore Jupiter, Saturn, and beyond. Right: The first image of Earth taken by a planetary spacecraft, Galileo, as it made a return encounter with its home planet for a gravity assist in 1990. 

As planetary spacecraft carried increasingly sophisticated instruments in the 1970s, some turned their cameras toward the Earth as they departed on their long voyages of exploration. In November 1973, a few days after Mariner 10 launched on its mission to explore Venus and Mercury, it snapped separate photographs of the Earth and the Moon, that technicians combined into a composite photo. On Sept. 18, 1977, at a distance of 7.25 million miles, the Jupiter-bound Voyager 1 snapped the first photograph of the Earth-Moon system in a single frame, providing an impression of the view from a spacecraft approaching our home planet. The Galileo spacecraft did exactly that – on Dec. 8, 1990, more than two years after its launch, it passed within 600 miles of Earth, using the planet for a gravity assist to reach Jupiter. During the fly-by, Galileo used its sophisticated instruments and cameras to study Earth as an unexplored planet and detected chemical signatures in atmospheric trace elements associated with life-form activity. 

Voyager 1’s family portrait of six planets, when the spacecraft was 3.7 billion miles from Earth in 1990
Voyager 1’s family portrait of six planets, when the spacecraft was 3.7 billion miles from Earth in 1990.

Pale Blue Dot Revisited, NASA’s 2020 remastered version of the Voyager 1 image of Earth
Pale Blue Dot Revisited, NASA’s 2020 remastered version of the Voyager 1 image of Earth.

On Feb. 14, 1990, more than 12 years after it began its journey from Earth and shortly before controller permanently turned off its cameras to conserve power, Voyager 1 spun around and pointed them back into the solar system. In a mosaic of 60 images, it captured a “family portrait” of six of the solar system’s planets, including a pale blue dot called Earth more than 3.7 billion miles away. In February 2020, to commemorate the photograph’s 30th anniversary, NASA released a remastered version of the image of Earth as Pale Blue Dot Revisited.

MESSENGER’s family portrait of the planets, taken from approximately the orbit of Mercury in 2010
MESSENGER’s family portrait of the planets, taken from approximately the orbit of Mercury in 2010.

Twenty years later, and from a very different part of the solar system, came another family portrait of the planets. From near the orbit of Mercury, the MESSENGER spacecraft took 34 images on Nov. 3 and 16, 2010, that engineers stitched together. The composite shows six planets, Venus, Earth, Jupiter, Mars, Mercury, and Saturn, and even several planetary satellites including the Moon and Jupiter’s four Galilean moons Callisto, Ganymede, Europa, and Io.

Earth and Moon photographed by the Mars Global Surveyor spacecraft in orbit around Mars in 2003 Earth and Moon photographed by the European Space Agency’s Mars Express spacecraft in orbit around Mars in 2003 Earth and Moon photographed by the Mars Reconnaissance Orbiter in orbit around Mars in 2007
Left: Earth and Moon photographed by the Mars Global Surveyor spacecraft in orbit around Mars in 2003. Middle: Earth and Moon photographed by the European Space Agency’s Mars Express spacecraft in orbit around Mars in 2003. Right: Earth and Moon photographed by the Mars Reconnaissance Orbiter in orbit around Mars in 2007.

Even before Spirit returned the first photo of Earth from the surface of Mars, spacecraft in orbit around the Red Planet took amazing photos of the Earth-Moon system with their telescopic high-resolution cameras. Mars Global Surveyor took the first photograph of the Earth-Moon system from Mars orbit in May 2003, the two planets 86 million miles apart. Given the Moon’s position in its orbit around Earth, the two bodies appeared close together. Two months later, in July 2003, the European Space Agency’s (ESA) Mars Express spacecraft photographed them appearing much further apart, given the Moon’s orbital position. In October 2007, Mars Reconnaissance Orbiter used its HiRISE camera to take a more detailed shot of the Earth-Moon system. Because Earth orbits closer to the Sun than Mars, it goes through phases, much as Mercury and Venus do as viewed from Earth.

The Earth-Moon system as seen from the Cassini spacecraft in orbit around Saturn in 2013
The Earth-Moon system as seen from the Cassini spacecraft in orbit around Saturn in 2013.

On July 19, 2013, the Cassini spacecraft in orbit around Saturn took a series of images from a distance of about 750,000 miles as the planet eclipsed the Sun. In the event dubbed The Day the Earth Smiled, people on Earth received notification in advance that Cassini would be taking their picture from 900 million miles away, and were encouraged to smile at its camera. In addition to the Earth and Moon, Cassini captured Venus, Mars, and seven of Saturn’s satellites in the photograph.

The MESSENGER spacecraft in orbit around Mercury took this photograph of Earth and Moon in 2013 The Parker Solar Probe photographed Earth through the solar corona from well inside the orbit of Mercury in 2023
Left: The MESSENGER spacecraft in orbit around Mercury took this photograph of Earth and Moon in 2013. Right: The Parker Solar Probe photographed Earth through the solar corona from well inside the orbit of Mercury in 2023.

On the same day that Cassini imaged Earth and other planets from Saturn, the MESSENGER spacecraft in orbit around Mercury, during a search for possible moons orbiting the small planet, took a photograph of the Earth-Moon system from 61 million miles away. The Parker Solar Probe, during its 16th close pass of the Sun in June 2023, took a series of photographs through the Sun’s corona, imaging several planets including Earth in the process. Engineers stitched the images together to create an amazing video of the solar corona and a coronal mass ejection. The view is from well inside Mercury’s orbit.

The European Space Agency’s Solar Orbiter took this mini-family portrait in November 2020
The European Space Agency’s Solar Orbiter took this mini-family portrait in November 2020.

The ESA Solar Orbiter spacecraft’s primary objectives focus on studying the Sun from close distances. These orbits enable it to photograph several planets at once. On Nov. 18, 2020, Solar Orbiter imaged Venus, Earth, and Mars in one frame.

We hope you enjoyed this review of how photographs of Earth over the past 80 years have changed our perspectives of our home planet, and also of our own place in the universe. Future human space explorers, whatever their destinations, will always look back and try to find their home planet in whatever sky it may shine, and hopefully share their experiences with us through photographs we can only dream about today.

View the full article

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By European Space Agency
      In a world first, ESA and Telesat have successfully connected a Low Earth Orbit (LEO) satellite to the ground using 5G Non-Terrestrial Network (NTN) technology in the Ka-band frequency range, marking a crucial step towards making space-based connections as simple as using a mobile phone.
      View the full article
    • By NASA
      5 Min Read NASA’s Ames Research Center Celebrates 85 Years of Innovation
      The NACA Ames laboratory in 1944 Credits: NASA Ames Research Center in California’s Silicon Valley pre-dates a lot of things. The center existed before NASA – the very space and aeronautics agency it’s a critical part of today. And of all the marvelous advancements in science and technology that have fundamentally changed our lives over the last 85 years since its founding, one aspect has remained steadfast; an enduring commitment to what’s known by some on-center simply as, “an atmosphere of freedom.” 
      Years before breaking ground at the site that would one day become home to the world’s preeminent wind tunnels, supercomputers, simulators, and brightest minds solving some of the world’s toughest challenges, Joseph Sweetman Ames, the center’s namesake, described a sentiment that would guide decades of innovation and research: 
      My hope is that you have learned or are learning a love of freedom of thought and are convinced that life is worthwhile only in such an atmosphere
      Joseph sweetman ames
      Founding member of the N.A.C.A.
      “My hope is that you have learned or are learning a love of freedom of thought and are convinced that life is worthwhile only in such an atmosphere,” he said in an address to the graduates of Johns Hopkins University in June 1935.
      That spirit and the people it attracted and retained are a crucial part of how Ames, along with other N.A.C.A. research centers, ultimately made technological breakthroughs that enabled humanity’s first steps on the Moon, the safe return of spacecraft through Earth’s atmosphere, and many other discoveries that benefit our day-to-day lives.
      Russell Robinson momentarily looks to the camera while supervising the first excavation at what would become Ames Research Center.NACA “In the context of my work, an atmosphere of freedom means the freedom to pursue high-risk, high-reward, innovative ideas that may take time to fully develop and — most importantly — the opportunity to put them into practice for the benefit of all,” said Edward Balaban, a researcher at Ames specializing in artificial intelligence, robotics, and advanced mission concepts.
      Balaban’s career at Ames has involved a variety of projects at different stages of development – from early concept to flight-ready – including experimenting with different ways to create super-sized space telescopes in space and using artificial intelligence to help guide the path a rover might take to maximize off-world science results. Like many Ames researchers over the years, Balaban shared that his experience has involved deep collaborations across science and engineering disciplines with colleagues all over the center, as well as commercial and academic partners in Silicon Valley where Ames is nestled and beyond. This is a tradition that runs deep at Ames and has helped lead to entirely new fields of study and seeded many companies and spinoffs.
      Before NASA, Before Silicon Valley: The 1939 Founding of Ames Aeronautical Laboratory “In the fields of aeronautics and space exploration the cost of entry can be quite high. For commercial enterprises and universities pursuing longer term ideas and putting them into practice often means partnering up with an organization such as NASA that has the scale and multi-disciplinary expertise to mature these ideas for real-world applications,” added Balaban.
      “Certainly, the topics of inquiry, the academic freedom, and the benefit to the public good are what has kept me at Ames,” reflected Ross Beyer, a planetary scientist with the SETI Institute at Ames. “There’s not a lot of commercial incentive to study other planets, for example, but maybe there will be soon. In the meantime, only with government funding and agencies like NASA can we develop missions to explore the unknown in order to make important fundamental science discoveries and broadly share them.”
      For Beyer, his boundary-breaking moment came when he searched – and found – software engineers at Ames capable and passionate about open-source software to generate accurate, high-resolution, texture-mapped, 3D terrain models from stereo image pairs. He and other teams of NASA scientists have since applied that software to study and better understand everything from changes in snow and ice characteristics on Earth, as well as features like craters, mountains, and caves on Mars or the Moon. This capability is part of the Artemis campaign, through which NASA will establish a long-term presence at the Moon for scientific exploration with commercial and international partners. The mission is to learn how to live and work away from home, promote the peaceful use of space, and prepare for future human exploration of Mars. 
      “As NASA and private companies send missions to the Moon, they need to plan landing sites and understand the local environment, and our software is freely available for anyone to use,” Beyer said. “Years ago, our management could easily have said ‘No, let’s keep this software to ourselves; it gives us a competitive advantage.’ They didn’t, and I believe that NASA writ large allows you to work on things and share those things and not hold them back.” 
      When looking forward to what the next 85 years might bring, researchers shared a belief that advancements in technology and opportunities to innovate are as expansive as space itself, but like all living things, they need a healthy atmosphere to thrive. Balaban offered, “This freedom to innovate is precious and cannot be taken for granted. It can easily fall victim if left unprotected. It is absolutely critical to retain it going forward, to ensure our nation’s continuing vitality and the strength of the other freedoms we enjoy.”
      Ames Aeronautical Laboratory.NACAView the full article
    • By NASA
      5 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      It’s a new year on Mars, and while New Year’s means winter in Earth’s northern hemisphere, it’s the start of spring in the same region of the Red Planet. And that means ice is thawing, leading to all sorts of interesting things. JPL research scientist Serina Diniega explains. NASA/JPL-Caltech Instead of a winter wonderland, the Red Planet’s northern hemisphere goes through an active — even explosive — spring thaw.
      While New Year’s Eve is around the corner here on Earth, Mars scientists are ahead of the game: The Red Planet completed a trip around the Sun on Nov. 12, 2024, prompting a few researchers to raise a toast.
      But the Martian year, which is 687 Earth days, ends in a very different way in the planet’s northern hemisphere than it does in Earth’s northern hemisphere: While winter’s kicking in here, spring is starting there. That means temperatures are rising and ice is thinning, leading to frost avalanches crashing down cliffsides, carbon dioxide gas exploding from the ground, and powerful winds helping reshape the north pole.
      “Springtime on Earth has lots of trickling as water ice gradually melts. But on Mars, everything happens with a bang,” said Serina Diniega, who studies planetary surfaces at NASA’s Jet Propulsion Laboratory in Southern California.
      Mars’ wispy atmosphere doesn’t allow liquids to pool on the surface, like on Earth. Instead of melting, ice sublimates, turning directly into a gas. The sudden transition in spring means a lot of violent changes as both water ice and carbon dioxide ice — dry ice, which is much more plentiful on Mars than frozen water — weaken and break.
      “You get lots of cracks and explosions instead of melting,” Diniega said. “I imagine it gets really noisy.”
      Using the cameras and other sensors aboard NASA’s Mars Reconnaissance Orbiter (MRO), which launched in 2005, scientists study all this activity to improve their understanding of the forces shaping the dynamic Martian surface. Here’s some of what they track.
      Frost Avalanches
      In 2015, MRO’s High-Resolution Imaging Science Experiment (HiRISE) camera captured a 66-foot-wide (20-meter-wide) chunk of carbon dioxide frost in freefall. Chance observations like this are reminders of just how different Mars is from Earth, Diniega said, especially in springtime, when these surface changes are most noticeable.
      Martian spring involves lots of cracking ice, which led to this 66-foot-wide (20-meter-wide) chunk of carbon dioxide frost captured in freefall by the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter in 2015NASA/JPL-Caltech/University of Arizona “We’re lucky we’ve had a spacecraft like MRO observing Mars for as long as it has,” Diniega said. “Watching for almost 20 years has let us catch dramatic moments like these avalanches.”
      Gas Geysers
      Diniega has relied on HiRISE to study another quirk of Martian springtime: gas geysers that blast out of the surface, throwing out dark fans of sand and dust. These explosive jets form due to energetic sublimation of carbon dioxide ice. As sunlight shines through the ice, its bottom layers turn to gas, building pressure until it bursts into the air, creating those dark fans of material.
      As light shines through carbon dioxide ice on Mars, it heats up its bottom layers, which, rather than melting into a liquid, turn into gas. The buildup gas eventually results in explosive geysers that toss dark fans of debris on to the surface.light shines through carbon dioxide ice on Mars But to see the best examples of the newest fans, researchers will have to wait until December 2025, when spring starts in the southern hemisphere. There, the fans are bigger and more clearly defined.
      Spiders
      Another difference between ice-related action in the two hemispheres: Once all the ice around some northern geysers has sublimated in summer, what’s left behind in the dirt are scour marks that, from space, look like giant spider legs. Researchers recently re-created this process in a JPL lab.
      Sometimes, after carbon dioxide geysers have erupted from ice-covered areas on Mars, they leave scour marks on the surface. When the ice is all gone by summer, these long scour marks look like the legs of giant spiders.NASA/JPL-Caltech/University of Arizona Powerful Winds
      For Isaac Smith of Toronto’s York University, one of the most fascinating subjects in springtime is the Texas-size ice cap at Mars’ north pole. Etched into the icy dome are swirling troughs, revealing traces of the red surface below. The effect is like a swirl of milk in a café latte.
      “These things are enormous,” Smith said, noting that some are a long as California. “You can find similar troughs in Antarctica but nothing at this scale.”
      As temperatures rise, powerful winds kick up that carve deep troughs into the ice cap of Mars’ north pole. Some of these troughs are as long as California, and give the Martian north pole its trademark swirls. This image was captured by NASA’s now-inactive Mars Global Surveyor.NASA/JPL-Caltech/MSSS Fast, warm wind has carved the spiral shapes over eons, and the troughs act as channels for springtime wind gusts that become more powerful as ice at the north pole starts to thaw. Just like the Santa Ana winds in Southern California or the Chinook winds in the Rocky Mountains, these gusts pick up speed and temperature as they ride down the troughs — what’s called an adiabatic process.
      Wandering Dunes
      The winds that carve the north pole’s troughs also reshape Mars’ sand dunes, causing sand to pile up on one side while removing sand from the other side. Over time, the process causes dunes to migrate, just as it does with dunes on Earth.
      This past September, Smith coauthored a paper detailing how carbon dioxide frost settles on top of polar sand dunes during winter, freezing them in place. When the frost all thaws away in the spring, the dunes begin migrating again.
      Surrounded by frost, these Martian dunes in Mars’ northern hemisphere were captured from above by NASA’s Mars Reconnaissance Orbiter using its HiRISE camera on Sept. 8, 2022. NASA/JPL-Caltech/University of Arizona Each northern spring is a little different, with variations leading to ice sublimating faster or slower, controlling the pace of all these phenomena on the surface. And these strange phenomena are just part of the seasonal changes on Mars: the southern hemisphere has its own unique activity.
      More About MRO
      The University of Arizona, in Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., in Boulder, Colorado. NASA’s Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA’s Science Mission Directorate, Washington.
      For more information, visit:
      https://science.nasa.gov/mission/mars-reconnaissance-orbiter
      News Media Contacts
      Andrew Good
      Jet Propulsion Laboratory, Pasadena, Calif.
      818-393-2433
      andrew.c.good@jpl.nasa.gov
      Karen Fox / Molly Wasser
      NASA Headquarters, Washington
      202-358-1600
      karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
      2024-177
      Share
      Details
      Last Updated Dec 20, 2024 Related Terms
      Mars Reconnaissance Orbiter (MRO) Jet Propulsion Laboratory Mars Explore More
      5 min read Cutting-Edge Satellite Tracks Lake Water Levels in Ohio River Basin
      Article 3 days ago 5 min read NASA Mars Orbiter Spots Retired InSight Lander to Study Dust Movement
      Article 4 days ago 5 min read NASA’s Perseverance Rover Reaches Top of Jezero Crater Rim
      Article 1 week ago Keep Exploring Discover Related Topics
      Missions
      Humans in Space
      Climate Change
      Solar System
      View the full article
    • By NASA
      1 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      NASA’s X-59 quiet supersonic research aircraft completed its first maximum afterburner test at Lockheed Martin’s Skunk Works facility in Palmdale, California. This full-power test, during which the engine generates additional thrust, validates the additional power needed for meeting the testing conditions of the aircraft. The X-59 is the centerpiece of NASA’s Quesst mission, which aims to overcome a major barrier to supersonic flight over land by reducing the noise of sonic booms.Lockheed Martin Corporation/Garry Tice NASA completed the first maximum afterburner engine run test on its X-59 quiet supersonic research aircraft on Dec. 12. The ground test, conducted at Lockheed Martin’s Skunk Works facility in Palmdale, California, marks a significant milestone as the X-59 team progresses toward flight.
      An afterburner is a component of some jet engines that generates additional thrust. Running the engine, an F414-GE-100, with afterburner will allow the X-59 to meet its supersonic speed requirements. The test demonstrated the engine’s ability to operate within temperature limits and with adequate airflow for flight. It also showed the engine’s ability to operate in sync with the aircraft’s other subsystems.
      The X-59 is the centerpiece of NASA’s Quesst mission, which seeks to solve one of the major barriers to supersonic flight over land by making sonic booms quieter. The X-59’s first flight is expected to occur in 2025.
      Share
      Details
      Last Updated Dec 20, 2024 EditorDede DiniusContactMatt Kamletmatthew.r.kamlet@nasa.gov Related Terms
      Aeronautics Aeronautics Research Mission Directorate Armstrong Flight Research Center Commercial Supersonic Technology Integrated Aviation Systems Program Low Boom Flight Demonstrator Quesst (X-59) Supersonic Flight Explore More
      2 min read NASA, Notre Dame Connect Students to Inspire STEM Careers
      Article 4 hours ago 2 min read NASA Flight Rerouting Tool Curbs Delays, Emissions
      Article 4 hours ago 3 min read Atmospheric Probe Shows Promise in Test Flight
      Article 1 week ago Keep Exploring Discover More Topics From NASA
      Armstrong Flight Research Center
      Aeronautics
      Supersonic Flight
      Quesst: The Vehicle
      View the full article
    • By NASA
      “Trying to do stellar observations from Earth is like trying to do birdwatching from the bottom of a lake.” James B. Odom, Hubble Program Manager 1983-1990.

      The third servicing mission to the Hubble Space Telescope, placed in orbit in 1990, occurred during the STS-103 mission in December 1999. During the mission, originally planned for June 2000 but accelerated by six months following unexpected failures of the telescope’s attitude control gyroscopes, the astronauts restored the facility to full functionality. During their eight-day mission that featured the first space shuttle crew to spend Christmas in space, the seven-member U.S. and European crew rendezvoused with and captured Hubble, and four astronauts in rotating teams of two conducted three lengthy and complex spacewalks to service and upgrade the telescope. They redeployed the telescope with greater capabilities than ever before to continue its mission to help scientists unlock the secrets of the universe.
      Schematic showing the Hubble Space Telescope’s major components. Workers inspect the Hubble Space Telescope’s 94-inch diameter primary mirror prior to assembly. Astronauts release the Hubble Space Telescope in April 1990 during the STS-31 mission. The discovery after the Hubble Space Telescope’s launch in 1990 that its primary mirror suffered from a flaw called spherical aberration disappointed scientists who could not obtain the sharp images they had expected. But thanks to the Hubble’s built-in feature of on-orbit servicing, NASA devised a plan to correct the telescope’s optics during the first planned repair mission in 1993. A second servicing mission in 1997 upgraded the telescope’s capabilities until the next mission planned for three years later. But after three of the telescope’s six gyroscopes failed in 1997, 1998, and 1999, mission rules dictated a call up mission in case additional gyroscope failures sent Hubble into a safe mode. NASA elected to move up some of the servicing tasks from the third mission, splitting it into missions 3A and 3B, planning to fly 3A in October 1999 on Discovery’s STS-103 mission primarily to replace the failed gyroscopes. Delays to the shuttle fleet resulting from anomalies during the launch of STS-93 in July 1993 slipped STS-103 first into November and ultimately into December. Technical issues with Discovery itself pushed the launch date to mid-December, and raised concerns about having a shuttle in orbit during the Y2K transition. Once the launch had slipped to Dec. 19, mission planners cut the mission from 10 to eight days, deleting one of the four spacewalks, to ensure a return before the end of the calendar year. The servicing mission couldn’t come soon enough, as a fourth gyroscope failed aboard Hubble in mid-November, with Discovery already poised on the launch pad to prepare for STS-103. Controllers placed Hubble in a safe mode until the astronauts arrived.
      The STS-103 crew of C. Michael Foale, left, Claude Nicollier, Scott J. Kelly, Curtis L. Brown, Jean-François A. Clervoy, John M. Grunsfeld, and Steven L. Smith. The STS-103 crew patch. The mission patch for the Hubble Servicing Mission-3A. To execute the third Hubble Servicing Mission, in July 1998 NASA selected an experienced four-person team to carry out a record-breaking six spacewalks on the flight then planned for June 2000. The spacewalkers included Mission Specialists Steven L. Smith serving as payload commander, John M. Grunsfeld, C. Michael Foale, and European Space Agency (ESA) astronaut Claude Nicollier from Switzerland. The addition in March 1999 of Commander Curtis L. Brown, Pilot Scott J. Kelly, and Mission Specialist ESA astronaut Jean-François A. Clervoy of France rounded out the highly experienced crew with 18 previous spaceflights among them. Brown earned the distinction as only the fifth person to fly in space six times. For Kelly, STS-103 marked his first spaceflight. Smith, Clervoy, and Grunsfeld each had flown two previous missions, Foale four including a long-duration mission aboard Mir, and Nicollier three. Smith participated in three spacewalks during the second Hubble Servicing Mission and Nicollier served as the Remote Manipulator System (RMS) or robotic arm operator during the first.
      The STS-103 crew at the traditional prelaunch breakfast at NASA’s Kennedy Space Center in Florida. Suited up, the STS-103 astronauts leave crew quarters for the trip to Launch Pad 39B. Space shuttle Discovery on Launch Pad 39B, awaiting launch. Discovery arrived back to KSC at the end of the STS-96 mission on June 6, 1999, and workers towed it to the Orbiter Processing Facility the same day to begin readying it for STS-103. The vehicle rolled over to the Vehicle Assembly Building on Nov. 4, where workers mated it with its external tank and twin solid rocket boosters, before rolling the stack out to Launch Pad 39B on Nov. 13.
      Liftoff of space shuttle Discovery on the STS-103 Hubble Space Telescope servicing mission 3A. The Hubble Space Telescope as Discovery approaches. The STS-103 crew berthing the Hubble into the payload bay. Beginning its 27th trip into space, Discovery lifted off from Launch Pad 39B at 7:50 p.m. EST on Dec. 19 to fix the ailing space telescope. Two days later, Brown and Kelly maneuvered Discovery to within range of Hubble so Clervoy operating the 50-foot-long RMS could grapple the telescope and berth it into the payload bay.
      During the first spacewalk, astronauts John M. Grunsfeld, left, and Steven L. Smith replacing one of the Rate Sensor Units containing two gyroscopes. Smith gives a thumbs up with his image reflected in the Hubble Space Telescope. Smith and Grunsfeld conducted the mission’s first spacewalk on Dec. 22, the flight’s fourth day in space. The duo, aided by Clervoy operating the RMS from inside Discovery, completed two of mission’s highest priority objectives. They replaced the failed gyroscopes, installing three new Rate Sensor Units, each containing two gyroscopes, to return control to the ailing telescope. They also installed six Voltage/Temperature Improvement Kits to prevent the telescope’s batteries from overheating as they aged. The excursion lasted eight hours 15 minutes, at the time the second longest spacewalk.
      During the second spacewalk, astronauts C. Michael Foale, left, and Claude Nicollier during the changeout of the fine guidance sensor. Foale at the end of the Remote Manipulator System services the Hubble Space Telescope. The next day, Nicollier and Foale conducted the mission’s second spacewalk. The main task for this excursion involved installing a new computer aboard Hubble, replacing the original 1970s vintage unit. The new radiation-hardened system ran 20 times faster and carried six times more memory while using one-third the electrical power. They also installed a fine guidance sensor before concluding the eight-hour 10-minute spacewalk.
      Astronauts Steven L. Smith, left, and John M. Grunsfeld begin their servicing activities during the third spacewalk. At the end of the third and final spacewalk, Grunsfeld, left, and Smith provide closing comments about the work the mission accomplished to service the Hubble Space Telescope. Smith and Grunsfeld ventured outside for a second time to complete the flight’s third and final spacewalk on Dec. 24, the first spacewalk conducted on Christmas Eve day. First, they replaced an old reel-to-reel tape recorder with a solid state unit providing a 10-fold increase in recording capability and replaced a failed data transmitter. They installed seven new covers on Hubble’s electronics bay doors for added protection of the telescope’s insulation. This third spacewalk lasted eight hours eight minutes.
      The first space shuttle crew to celebrate Christmas in space, the STS-103 astronauts pose wearing Santa hats. The Hubble Space Telescope shortly after the STS-103 crew released it. The next day, the STS-103 astronauts earned the distinction as the first space shuttle crew to spend Christmas Day in space. Clervoy grappled Hubble, lifted it out of the payload bay and released it to continue its mission. Hubble Space Telescope Program Manager John H. Campbell said after the release, “The spacecraft is being guided by its new gyros under the control of its brand new computer. [It] is now orbiting freely and is in fantastic shape.” After deploying Hubble, the astronauts enjoyed a well-deserved Christmas dinner, with Clervoy providing French delicacies. The crew spent Dec. 26 readying Discovery for its return to Earth, including testing its reaction control system thrusters and aerodynamic surfaces and stowing unneeded gear.
      Astronauts Steven L. Smith, left, Claude Nicollier, and John M. Grunsfeld complete their fluid loading protocol and put on their launch and entry suits prior to reentry. Space shuttle Discovery makes a perfect night landing at NASA’s Kennedy Space Center in Florida. The crew welcome home ceremony at Ellington Field in Houston. On Dec. 27, the astronauts donned their launch and entry suits and prepared for the return to Earth. They closed the payload bay doors and fired Discovery’s engines to bring them out of orbit. Just before landing, Kelly lowered the craft’s landing gear and Brown guided Discovery to a smooth night landing at KSC, concluding a flight of seven days, 23 hours, 11 minutes. They circled the Earth 119 times. The flight marked Discovery’s last solo flight as all its subsequent missions docked with the International Space Station. Workers at KSC began readying it for its next mission, STS-92 in October 2000.

      The Hubble Space Telescope continues to operate today, far exceeding the five-year life extension expected from the last of the servicing missions in 2009. Joined in space by the James Webb Space Telescope in 2021, the two instruments together continue to image the skies across a broad range of the electromagnetic spectrum to provide scientists with the tools to gain unprecedented insights into the universe and its formation.

      Watch the STS-103 crew narrate a video of their Hubble servicing mission.
      View the full article
  • Check out these Videos

×
×
  • Create New...