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By NASA
NASA Deep Space Station 43 (DSS-43), a 230-foot-wide (70-meter-wide) radio antenna at NASA’s Deep Space Network facility in Canberra, Australia, is seen in this March 4, 2020, image. DSS-43 was more than six times as sensitive as the original antenna at the Canberra complex, so it could communicate with spacecraft at greater distances from Earth. In fact, Canberra is the only complex that can send commands to, and receive data from, Voyager 2 as it heads south almost 13 billion miles (21 billion kilometers) through interstellar space. More than 15 billion miles (24 billion kilometers) away, Voyager 1 sends its data down to the Madrid and Goldstone complexes, but it, too, can only receive commands via Canberra.
As the Canberra facility celebrated its 60th anniversary on March 19, 2025, work began on a new radio antenna. Canberra’s newest addition, Deep Space Station 33, will be a 112-foot-wide (34-meter-wide) multifrequency beam-waveguide antenna. Buried mostly below ground, a massive concrete pedestal will house cutting-edge electronics and receivers in a climate-controlled room and provide a sturdy base for the reflector dish, which will rotate during operations on a steel platform called an alidade.
When it goes online in 2029, the new Canberra dish will be the last of six parabolic dishes constructed under NASA’s Deep Space Network Aperture Enhancement Program, which is helping to support current and future spacecraft and the increased volume of data they provide. The network’s Madrid facility christened a new dish in 2022, and the Goldstone, California, facility is putting the finishing touches on a new antenna.
Image credit: NASA
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By NASA
NASA astronauts (left to right) Christina Koch, Victor Glover, Reid Wiseman, Canadian Space Agency Astronaut Jeremy Hansen. Credit: NASA/Josh Valcarcel The Artemis II test flight will be NASA’s first mission with crew under Artemis. Astronauts on their first flight aboard NASA’s Orion spacecraft will confirm all of the spacecraft’s systems operate as designed with crew aboard in the actual environment of deep space. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.
The unique Artemis II mission profile will build upon the uncrewed Artemis I flight test by demonstrating a broad range of SLS (Space Launch System) and Orion capabilities needed on deep space missions. This mission will prove Orion’s critical life support systems are ready to sustain our astronauts on longer duration missions ahead and allow the crew to practice operations essential to the success of Artemis III and beyond.
Leaving Earth
The mission will launch a crew of four astronauts from NASA’s Kennedy Space Center in Florida on a Block 1 configuration of the SLS rocket. Orion will perform multiple maneuvers to raise its orbit around Earth and eventually place the crew on a lunar free return trajectory in which Earth’s gravity will naturally pull Orion back home after flying by the Moon. The Artemis II astronauts are NASA’s Reid Wiseman, Victor Glover, and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen.
The initial launch will be similar to Artemis I as SLS lofts Orion into space, and then jettisons the boosters, service module panels, and launch abort system, before the core stage engines shut down and the core stage separates from the upper stage and the spacecraft. With crew aboard this mission, Orion and the upper stage, called the interim cryogenic propulsion stage (ICPS), will then orbit Earth twice to ensure Orion’s systems are working as expected while still close to home. The spacecraft will first reach an initial orbit, flying in the shape of an ellipse, at an altitude of about 115 by 1,400 miles. The orbit will last a little over 90 minutes and will include the first firing of the ICPS to maintain Orion’s path. After the first orbit, the ICPS will raise Orion to a high-Earth orbit. This maneuver will enable the spacecraft to build up enough speed for the eventual push toward the Moon. The second, larger orbit will take approximately 23.5 hours with Orion flying in an ellipse between about 115 and 46,000 miles above Earth. For perspective, the International Space Station flies a nearly circular Earth orbit about 250 miles above our planet.
After the burn to enter high-Earth orbit, Orion will separate from the upper stage. The expended stage will have one final use before it is disposed through Earth’s atmosphere—the crew will use it as a target for a proximity operations demonstration. During the demonstration, mission controllers at NASA’s Johnson Space Center in Houston will monitor Orion as the astronauts transition the spacecraft to manual mode and pilot Orion’s flight path and orientation. The crew will use Orion’s onboard cameras and the view from the spacecraft’s windows to line up with the ICPS as they approach and back away from the stage to assess Orion’s handling qualities and related hardware and software. This demonstration will provide performance data and operational experience that cannot be readily gained on the ground in preparation for critical rendezvous, proximity operations and docking, as well as undocking operations in lunar orbit beginning on Artemis III.
Checking Critical Systems
Following the proximity operations demonstration, the crew will turn control of Orion back to mission controllers at Johnson and spend the remainder of the orbit verifying spacecraft system performance in the space environment. They will remove the Orion Crew Survival System suit they wear for launch and spend the remainder of the in-space mission in plain clothes, until they don their suits again to prepare for reentry into Earth’s atmosphere and recovery from the ocean.
While still close to Earth, the crew will assess the performance of the life support systems necessary to generate breathable air and remove the carbon dioxide and water vapor produced when the astronauts breathe, talk, or exercise. The long orbital period around Earth provides an opportunity to test the systems during exercise periods, where the crew’s metabolic rate is the highest, and a sleep period, where the crew’s metabolic rate is the lowest. A change between the suit mode and cabin mode in the life support system, as well as performance of the system during exercise and sleep periods, will confirm the full range of life support system capabilities and ensure readiness for the lunar flyby portion of the mission.
Orion will also checkout the communication and navigation systems to confirm they are ready for the trip to the Moon. While still in the elliptical orbit around Earth, Orion will briefly fly beyond the range of GPS satellites and the Tracking and Data Relay Satellites of NASA’s Space Network to allow an early checkout of agency’s Deep Space Network communication and navigation capabilities. When Orion travels out to and around the Moon, mission control will depend on the Deep Space Network to communicate with the astronauts, send imagery to Earth, and command the spacecraft.
After completing checkout procedures, Orion will perform the next propulsion move, called the translunar injection (TLI) burn. With the ICPS having done most of the work to put Orion into a high-Earth orbit, the service module will provide the last push needed to put Orion on a path toward the Moon. The TLI burn will send crew on an outbound trip of about four days and around the backside of the Moon where they will ultimately create a figure eight extending over 230,000 miles from Earth before Orion returns home.
To the Moon and “Free” Ride Home
On the remainder of the trip, astronauts will continue to evaluate the spacecraft’s systems, including demonstrating Earth departure and return operations, practicing emergency procedures, and testing the radiation shelter, among other activities.
The Artemis II crew will travel approximately 4,600 miles beyond the far side of the Moon. From this vantage point, they will be able to see the Earth and the Moon from Orion’s windows, with the Moon close in the foreground and the Earth nearly a quarter-million miles in the background.
With a return trip of about four days, the mission is expected to last about 10 days. Instead of requiring propulsion on the return, this fuel-efficient trajectory harnesses the Earth-Moon gravity field, ensuring that—after its trip around the far side of the Moon—Orion will be pulled back naturally by Earth’s gravity for the free return portion of the mission.
Two Missions, Two Different Trajectories
Following Artemis II, Orion and its crew will once again travel to the Moon, this time to make history when the next astronauts walk on the lunar surface. Beginning with Artemis III, missions will focus on establishing surface capabilities and building Gateway in orbit around the Moon.
Through Artemis, NASA will explore more of the Moon than ever before and create an enduring presence in deep space.
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By NASA
NASA astronaut and SpaceX Crew-10 Pilot Nichole Ayers.Credit: SpaceX Students from Dade City, Florida, will have the chance to connect with NASA astronaut Nichole Ayers as she answers prerecorded science, technology, engineering, and mathematics-related questions from aboard the International Space Station.
Watch the 20-minute space-to-Earth call at 1 p.m. EDT on Friday, April 11, on NASA+ and learn how to watch NASA content on various platforms, including social media.
The event, hosted by Academy at the Farm and open to students and their families, will occur in Dade City. Academy at the Farm is a charter school that plans to use the event to connect the students with space exploration and the work being done aboard the space station.
Media interested in covering the event must RSVP by 5 p.m., Wednesday, April 9, to Ashley Cantwell at acantwell@academyatthefarm.com or 813-957-8878.
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos and lesson plans highlighting space station research at:
https://www.nasa.gov/stemonstation
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Gerelle Dodson
Headquarters, Washington
202-358-1600
gerelle.q.dodson@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Apr 08, 2025 LocationNASA Headquarters Related Terms
International Space Station (ISS) Humans in Space In-flight Education Downlinks ISS Research Johnson Space Center View the full article
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By NASA
7 min read
Eclipses, Science, NASA Firsts: Heliophysics Big Year Highlights
One year ago today, a total solar eclipse swept across the United States. The event was a cornerstone moment in the Heliophysics Big Year, a global celebration of the Sun’s influence on Earth and the entire solar system. From October 2023 to December 2024 — a period encompassing two solar eclipses across the U.S., two new NASA heliophysics missions, and one spacecraft’s history-making solar flyby — NASA celebrated the Sun’s widespread influence on our lives.
An infographic showing key numbers summarizing the activities and events of the Heliophysics Big Year, which spanned from Oct. 14, 2023 – Dec. 24, 2024. NASA/Miles Hatfield/Kristen Perrin Annular Solar Eclipse
An annular (or “ring of fire”) solar eclipse occurred Oct. 14, 2023, and kicked off the Helio Big Year with a bang. Millions of people across North America witnessed the Moon crossing in front of the Sun, creating this brilliant celestial event. NASA’s live broadcast had more than 11 million views across different platforms.
On Oct. 14, 2023, an annular solar eclipse crossed North, Central, and South America. Visible in parts of the United States, Mexico, and many countries in South and Central America, millions of people in the Western Hemisphere were able to experience this “ring of fire” eclipse. NASA’s official broadcast and outreach teams were located in Kerrville, TX, and Albuquerque, NM, to capture the event and celebrate with the communities in the path of annularity.
Credit: NASA/Ryan Fitzgibbons Before the eclipse, NASA introduced the 2023 Eclipse Explorer, an interactive map to explore eclipse details for any location in the United States. NASA shared tips on eclipse safety, including through a video with NSYNC’s Lance Bass and even with an augmented reality filter.
Scientists also studied conditions during the annular eclipse with sounding rockets, balloons, and amateur radio.
Total Solar Eclipse
On April 8, 2024, millions of people across North America experienced a total solar eclipse that darkened parts of 15 U.S. states in the path of totality.
Ahead of the event, NASA hosted a widespread safety campaign, handed out over 2 million solar viewing glasses, and produced an interactive map to help viewers plan their viewing experience. On eclipse day, NASA also hosted a live broadcast from locations across the country, drawing over 38 million views.
Researchers studied the eclipse and its effects on Earth using a variety of techniques, including international radar networks, scientific rockets, weather balloons, and even high-altitude NASA WB-57 jets. Several NASA-funded citizen science projects also conducted experiments. These projects included more than 49,000 volunteers who contributed an astounding 53 million observations.
This infographic shares metrics from citizen science projects that occurred during the total solar eclipse on April 8, 2024. NASA/Kristen Perrin “We have opened a window for all Americans to discover our connection to the Sun and ignited enthusiasm for engaging with groundbreaking NASA science, whether it’s through spacecraft, rockets, balloons, or planes,” said Kelly Korreck, a Heliophysics program scientist at NASA Headquarters in Washington. “Sharing the excitement of NASA heliophysics with our fellow citizens has truly been amazing.”
Science Across the Solar System
NASA’s heliophysics missions gather data on the Sun and its effects across the solar system.
The Atmospheric Waves Experiment (AWE) mission launched from NASA’s Kennedy Space Center in Florida Nov. 9, 2023, and was installed on the International Space Station nine days later. This mission studies atmospheric gravity waves, how they form and travel through Earth’s atmosphere, and their role in space weather.
Orbital footage from the International Space Station shows NASA’s Atmospheric Waves Experiment (AWE) as it was extracted from SpaceX’s Dragon cargo spacecraft. NASA/International Space Station On Nov. 4, 2024, the Coronal Diagnostic Experiment (CODEX) mission also launched to the space station, where it studies the solar wind, with a focus on what heats it and propels it through space.
Pictured is the CODEX instrument inside the integration and testing facility at NASA’s Goddard Space Flight Center. NASA/CODEX team The Aeronomy of Ice in the Mesosphere (AIM) mission ended after 16 years studying Earth’s highest clouds, called polar mesospheric clouds.
An artist’s concept shows the Aeronomy of Ice in the Mesosphere (AIM) spacecraft orbiting Earth. NASA’s Goddard Space Flight/Center Conceptual Image Lab NASA’s Ionospheric Connection Explorer (ICON) also ended after three successful years studying the outermost layer of Earth’s atmosphere, called the ionosphere.
NASA’s ICON, shown in this artist’s concept, studied the frontiers of space, the dynamic zone high in our atmosphere where terrestrial weather from below meets space weather above. NASA’s Goddard Space Flight Center/Conceptual Image Lab Voyager has been operating for more than 47 years, continuing to study the heliosphere and interstellar space. In October 2024, the Voyager 1 probe stopped communicating. The mission team worked tirelessly to troubleshoot and ultimately reestablish communications, keeping the mission alive to continue its research.
In this artist’s conception, NASA’s Voyager 1 spacecraft has a bird’s-eye view of the solar system. The circles represent the orbits of the major outer planets: Jupiter, Saturn, Uranus, and Neptune. Launched in 1977, Voyager 1 visited the planets Jupiter and Saturn. The spacecraft is now 13 billion miles from Earth, making it the farthest and fastest-moving human-made object ever built. In fact, Voyager 1 is now zooming through interstellar space, the region between the stars that is filled with gas, dust, and material recycled from dying stars. NASA’s Hubble Space Telescope is observing the material along Voyager’s path through space. NASA/STSci While the goal of the NASA heliophysics fleet is to study the Sun and its influence, these missions often make surprising discoveries that they weren’t originally designed to. From finding 5,000 comets to studying the surface of Venus, NASA highlighted and celebrated these bonus science connections during the Helio Big Year.
Solar Maximum
Similar to Earth, the Sun has its own seasons of activity, with a solar minimum and solar maximum during a cycle that lasts about 11 years. The Helio Big Year happened to coincide with the Sun’s active period, with NASA and NOAA announcing in October 2024 that the Sun had reached solar maximum, the highest period of activity. Some of the largest solar storms on current record occurred in 2024, and the largest sunspot in nearly a decade was spotted in the spring of 2024, followed by a colossal X9.0 solar flare Oct. 3, 2024.
Sunspots are cooler, darker areas on the solar surface where the Sun’s magnetic field gets especially intense, often leading to explosive solar eruptions. This sunspot group was so big that nearly 14 Earths could fit inside it! The eruptions from this region resulted in the historic May 2024 geomagnetic storms, when the aurora borealis, or northern lights, were seen as far south as the Florida Keys.
Credit: NASA/Beth Anthony Viewers across the U.S. spotted auroras in their communities as a result of these storms, proving that you can capture amazing aurora photography without advanced equipment.
The Big Finale: Parker’s Close Approach to the Sun
NASA’s Parker Solar Probe holds the title as the closest human-made object to the Sun. On Dec. 24, 2024, Parker made history by traveling just 3.8 million miles from the Sun’s surface at a whopping 430,000 miles per hour.
“Flying this close to the Sun is a historic moment in humanity’s first mission to a star,” said Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters.
Controllers have confirmed NASA’s mission to “touch” the Sun survived its record-breaking closest approach to the solar surface on Dec. 24, 2024.
Credit: NASA/Joy Ng Parker Solar Probe’s close approach capped off a momentous Heliophysics Big Year that allowed NASA scientists to gather unprecedented data and invited everyone to celebrate how the Sun impacts us all. In the growing field of heliophysics, the Helio Big Year reminded us all how the Sun touches everything and how important it is to continue studying our star’s incredible influence.
A Big Year Ahead
Though the Helio Big Year is over, heliophysics is only picking up its pace in 2025. We remain in the solar maximum phase, so heightened solar activity will continue into the near future. In addition, several new missions are expected to join the heliophysics fleet by year’s end.
The PUNCH mission, a set of four Sun-watching satellites imaging solar eruptions in three dimensions, and EZIE, a trio of Earth-orbiting satellites tracing the electrical currents powering Earth’s auroras, have already launched. The LEXI instrument, an X-ray telescope studying Earth’s magnetosphere from the Moon, also launched through NASA’s CLPS (Commercial Lunar Payload Services) initiative.
Future missions slated for launch include TRACERS, which will investigate the unusual magnetic environment near Earth’s poles, and ESCAPADE, venturing to Mars to measure the planet’s unique magnetic environment.
The last two missions will share a ride to space. The Carruthers Geocorona Observatory will look back at home, studying ultraviolet light emitted by the outermost boundaries of our planet’s atmosphere. The IMAP mission will instead look to the outermost edges of our heliosphere, mapping the boundaries where the domain of our Sun transitions into interstellar space.
By Desiree Apodaca
NASA’s Goddard Space Flight Center
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Last Updated Apr 08, 2025 Editor Miles Hatfield Related Terms
Heliophysics Goddard Space Flight Center Heliophysics Division NASA Centers & Facilities NASA Directorates Science & Research Science Mission Directorate The Solar System The Sun Explore More
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Preparations for Next Moonwalk Simulations Underway (and Underwater)
Students from Universidad Católica Boliviana “San Pablo” compete during NASA’s 2024 Human Exploration Rover Challenge. The 2025 competition takes place Friday and Saturday, April 11-12, 2025, at the U.S. Space & Rocket Center’s Aviation Challenge course in Huntsville, Alabama. NASA NASA’s annual Human Exploration Rover Challenge returns Friday, April 11, and Saturday, April 12, with student teams competing at the U.S. Space & Rocket Center’s Aviation Challenge course near the agency’s Marshall Space Flight Center in Huntsville, Alabama.
Media are invited to watch as hundreds of students from around the world attempt to navigate a complex obstacle course by piloting a vehicle of their own design and production. Media interested in attending or setting up interviews should contact Taylor Goodwin in the Marshall Office of Communications at 938-210-2891 no later than 2 p.m. Thursday, April 10.
In addition to the traditional human-powered rover division, this year’s competition expands the challenge to include a remote-control division. The 2025 HERC Handbook includes guidelines for the new remote-control division and updates for the human-powered division.
Participating teams represent 35 colleges and universities, 38 high schools, and two middle schools from 20 states, Puerto Rico, and 16 other nations.
The event is free and open to the public, with rover excursions from 7:30 a.m. to 3 p.m. CDT each day, or until the last rover completes the obstacle course.
Following the competition, NASA will host an in-person awards ceremony Saturday, April 12, at 5:30 p.m. inside the Space Camp Operations Center at the U.S. Space & Rocket Center. NASA and industry sponsors will present multiple awards highlighting team successes throughout the past eight-months-long engineering design project, including awards for best rover design, best pit crew, best social media presence, and many other accomplishments.
About the Challenge
Recognized as NASA’s leading international student challenge, the Human Exploration Rover Challenge aims to put competitors in the mindset of NASA’s Artemis campaign. Teams pitch an engineering design for a lunar rover which simulates astronauts exploring the lunar surface while overcoming various obstacles. Eligible teams compete to be among the top three finishers in their divisions, and to win multiple awards, including best vehicle design, best rookie team, and more.
The annual challenge draws hundreds of students from around the world and reflects the goals of NASA’s Artemis campaign, which will establish the first long-term presence on the Moon and pave the way for eventual missions to Mars.
The event was launched in 1994 as the NASA Great Moonbuggy Race – a collegiate competition to commemorate the 25th anniversary of the Apollo 11 lunar landing. It expanded in 1996 to include high school teams, evolving again in 2014 into the NASA Human Exploration Rover Challenge. Since its inception, more than 15,000 students have participated – with many former students now working in the aerospace industry, including with NASA.
The Human Exploration Rover Challenge is managed by NASA Marshall’s Southeast Regional Office of STEM Engagement and is one of eight Artemis Student Challenges. NASA’s Office of STEM Engagement uses challenges and competitions to further the agency’s goal of encouraging students to pursue degrees and careers in science, technology, engineering, and mathematics.
To learn more about the challenge, visit:
https://www.nasa.gov/roverchallenge/
Taylor Goodwin
256-544-0034
Marshall Space Flight Center, Huntsville, Alabama
taylor.goodwin@nasa.gov
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Last Updated Apr 04, 2025 EditorBeth RidgewayLocationMarshall Space Flight Center Related Terms
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