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By NASA
This illustration shows a red, early-universe dwarf galaxy that hosts a rapidly feeding black hole at its center. Using data from NASA’s James Webb Space Telescope and Chandra X-ray Observatory, a team of astronomers have discovered this low-mass supermassive black hole at the center of a galaxy just 1.5 billion years after the Big Bang. It is pulling in matter at a phenomenal rate — over 40 times the theoretical limit. While short lived, this black hole’s “feast” could help astronomers explain how supermassive black holes grew so quickly in the early universe.NOIRLab/NSF/AURA/J. da Silva/M. Zamani A rapidly feeding black hole at the center of a dwarf galaxy in the early universe, shown in this artist’s concept, may hold important clues to the evolution of supermassive black holes in general.
Using data from NASA’s James Webb Space Telescope and Chandra X-ray Observatory, a team of astronomers discovered this low-mass supermassive black hole just 1.5 billion years after the big bang. The black hole is pulling in matter at a phenomenal rate — over 40 times the theoretical limit. While short lived, this black hole’s “feast” could help astronomers explain how supermassive black holes grew so quickly in the early universe.
Supermassive black holes exist at the center of most galaxies, and modern telescopes continue to observe them at surprisingly early times in the universe’s evolution. It’s difficult to understand how these black holes were able to grow so big so rapidly. But with the discovery of a low-mass supermassive black hole feasting on material at an extreme rate so soon after the birth of the universe, astronomers now have valuable new insights into the mechanisms of rapidly growing black holes in the early universe.
The black hole, called LID-568, was hidden among thousands of objects in the Chandra X-ray Observatory’s COSMOS legacy survey, a catalog resulting from some 4.6 million Chandra observations. This population of galaxies is very bright in the X-ray light, but invisible in optical and previous near-infrared observations. By following up with Webb, astronomers could use the observatory’s unique infrared sensitivity to detect these faint counterpart emissions, which led to the discovery of the black hole.
The speed and size of these outflows led the team to infer that a substantial fraction of the mass growth of LID-568 may have occurred in a single episode of rapid accretion.
LID-568 appears to be feeding on matter at a rate 40 times its Eddington limit. This limit relates to the maximum amount of light that material surrounding a black hole can emit, as well as how fast it can absorb matter, such that its inward gravitational force and outward pressure generated from the heat of the compressed, infalling matter remain in balance.
These results provide new insights into the formation of supermassive black holes from smaller black hole “seeds,” which current theories suggest arise either from the death of the universe’s first stars (light seeds) or the direct collapse of gas clouds (heavy seeds). Until now, these theories lacked observational confirmation.
The new discovery suggests that “a significant portion of mass growth can occur during a single episode of rapid feeding, regardless of whether the black hole originated from a light or heavy seed,” said International Gemini Observatory/NSF NOIRLab astronomer Hyewon Suh, who led the research team.
A paper describing these results (“A super-Eddington-accreting black hole ~1.5 Gyr after the Big Bang observed with JWST”) appears in the journal Nature Astronomy.
About the Missions
NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).
Read more from NASA’s Chandra X-ray Observatory.
Learn more about the Chandra X-ray Observatory and its mission here:
https://www.nasa.gov/chandra
https://chandra.si.edu
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Elizabeth Laundau
NASA Headquarters
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Lane Figueroa
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lane.e.figueroa@nasa.gov
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Note: The following article is part of a series highlighting propulsion testing at NASA’s Stennis Space Center. To access the entire series, please visit: https://www.nasa.gov/feature/propulsion-powering-space-dreams/.
Workers making way for NASA’s Stennis Space Center near Bay St. Louis, Mississippi, likely did not realize they were building something that would not only withstand the test of time but transcend it.
Mosquitoes, snakes, hurricanes, and intense south Mississippi heat – early crews faced all with a spirit of resilience and adaptability that remains a hallmark characteristic of NASA Stennis six decades later.
“From going to the Moon for the first time and now returning to the Moon, you can trace a straight line of propulsion testing at NASA Stennis,” said Maury Vander, chief of the NASA Stennis Test Operations Division. “We still stand on the front lines of support for this country’s space program.”
For five decades and counting, the versatile NASA Stennis test stands have been used for stage, engine, and component testing on multiple NASA and commercial projects.
A Sept. 25, 2012, aerial image shows the three propulsion test areas at NASA’s Stennis Space Center – the E Test Complex (with 12 active test cell positions capable of component, engine, and stage test activities) in the foreground, the A Test Complex (featuring the Fred Haise, A-2, and A-3 stands for large engine testing) in the middle, and the Thad Cochran Test Stand (B-1/B-2) that can support both engine and stage testing in the background.NASA/Stennis The Fred Haise Test Stand (formerly the A-1 Test Stand), pictured on Oct. 6, 2020, at NASA’s Stennis Space Center, tests RS-25 flight engines to help power NASA’s powerful SLS (Space Launch System). NOTE: Right click on photo to open full image in new tab.NASA/Stennis An image shows the A-2 Test Stand at NASA’s Stennis Space Center – then-Mississippi Test Facility – on April 17, 1966. Less than a week later, south Mississippi would be fully ushered into the Apollo era with the site’s first-ever hot fire test. NOTE: Right click on photo to open full image in new tab.NASA/Stennis An image shows the A-3 Test Stand at NASA’s Stennis Space Center on March 29, 2013. The test stand area now is under lease to Rocket Lab for commercial operations. NOTE: Right click on photo to open full image in new tab.NASA/Stennis An image shows the Thad Cochran Test Stand (B-1/B-2) at NASA’s Stennis Space Center on Dec. 31, 2014, during buildout for testing the core stage of NASA’s SLS (Space Launch System) rocket. NASA/Stennis An aerial image shows the Thad Cochran Test Stand (B-1/B-2) at NASA’s Stennis Space Center on Feb. 22, 2017, following core stage buildout of the test stand for future SLS (Space Launch System) testing. NASA/Stennis Three NASA Stennis stands – Fred Haise (formerly the A-1 Test Stand), A-2, and Thad Cochran (B-1/B-2) – date to the 1960s, when they were built to test Saturn V rocket stages for Apollo missions to the Moon. The Fred Haise and A-2 stand were single-position stands for testing one Saturn V second stage at a time. The Thad Cochran featured two positions – (B-1 and B-2) – that could each house a Saturn V first stage, although only the B-2 position was used during Apollo testing.
When the Apollo Program ended, the Fred Haise, A-2, and Thad Cochran (B-1) stands were modified to test single engines rather than rocket stages. All three were used in subsequent years to test space shuttle main engines and others.
Meanwhile, the Thad Cochran (B-2) stand was maintained for full stage testing. The space shuttle Main Propulsion Test Article was tested on the stand, as was the Common Core Booster for the Delta IV rocket. Most recently, the stand was used to test the first SLS (Space Launch System) stage that helped launch the Artemis I mission in 2022.
In 2024, the Fred Haise Test Stand is dedicated to RS-25 engine testing for NASA’s Artemis initiative. Every RS-25 engine that will help launch an SLS rocket during Artemis will be tested on the stand. The A-2 stand has been leased to Relativity Space, which is modifying it to support stage testing for its new rocket. In 2023, the Thad Cochran (B-1) stand concluded more than 20 years of RS-68 testing for Aerojet Rocketdyne (now known as L3Harris) and now is open for commercial use. The Thad Cochran (B-2) stand is being prepared to test NASA’s new SLS exploration upper stage before it flies on a future Artemis mission.
“When you think about the work at NASA Stennis, this is a place that helps write history,” Vander said. “And in a sense, these test stands are timeless, still operating as designed 60 years after they were built, so there is more history yet to come.”
NASA Stennis also constructed a fourth large test structure in the 2010s. The A-3 Test Stand is uniquely designed to simulate high altitudes up to 100,000 feet for testing engines and stages that need to fire in space. Rocket Lab currently leases the A-3 Test Stand area for construction of its Archimedes Test Complex.
Crews deliver the first RS-25 flight engine, engine No. 2059, to the Fred Haise Test Stand (formerly the A-1 Test Stand) at NASA’s Stennis Space Center on Nov. 4, 2015. The engine was tested to certify it for use on NASA’s powerful SLS (Space Launch System) rocket. NASA/Stennis An image shows a space shuttle main engine test on the A-2 Test Stand at NASA’s Stennis Space Center on July 21, 2003. NASA/Stennis The A-3 Test Stand, designed to test fire next-generation engines at simulated altitudes up to 100,000 feet, undergoes an activation test on Feb. 24, 2014.NASA/Stennis NASA Stennis also operates a smaller test area to conduct component, subsystem, and system level testing. The area is now known as the E Test Complex and features four facilities, all developed from the late 1980s to the early 1990s.
Construction of the E-1 Test Stand, then known as the Component Test Facility, began to support a joint project involving NASA and the U.S. Air Force project. Although the project was canceled, a second joint endeavor allowed completion of the test facility.
Development of the E-2 Test Stand, originally known as the High Heat Flux Facility, began to support the National Aerospace Plane project. Following cancelation of the project, the facility was completed to support testing for component and engine development efforts.
An E-3 Test Facility was constructed to support various component and small/subscale engine and booster test projects. Relativity Space leased a partially developed E-4 test area in 2018 and has since completed construction to support its commercial testing.
All in all, the E Test Complex stands feature 12 active cells capable of various component and engine testing. The versatility of the complex infrastructure and test team allows it to support test projects for a range of commercial aerospace companies, large and small. Currently, both E-2 cells 1 and 2 are leased to Relativity Space through 2028.
An aerial image shows the E-1 Test Stand at NASA’s Stennis Space Center on May 19, 2015. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities. NASA/Stennis An aerial image shows the E-3 test area at NASA’s Stennis Space Center on May 19, 2015. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities. NASA/Stennis An aerial image shows the E-2 Test Stand (Cell 1) at NASA’s Stennis Space Center on May 19, 2015. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities. NASA/Stennis “These facilities really do not exist anywhere else in the United States,” said Kevin Power, assistant director, Office of Project Management in the NASA Stennis Engineering and Test Directorate. “Customers come to us with requirements for certain tests of an article, and we look at what is the best place to test it based on the facility infrastructure. We have completed component level testing, all the way up to full engines.”
The list of companies who have conducted – or are now conducting – propulsion projects in the E Test Complex reads like a who’s who of commercial aerospace leaders.
“The E Complex illustrates the NASA Stennis story,” Power said. “We have very valuable infrastructure and resources, chief of which is the test team, who adapt to benefit NASA and meet the needs of the growing commercial aerospace industry.”
For information about NASA’s Stennis Space Center, visit:
Stennis Space Center – NASA
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Last Updated Nov 13, 2024 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Note: The following article is part of a series highlighting propulsion testing at NASA’s Stennis Space Center. To access the entire series, please visit: https://www.nasa.gov/feature/propulsion-powering-space-dreams/.
An aerial image from 1965 shows the dual flame trenches of the Thad Cochran Test Stand (B-1/B-2) under construction at NASA’s Stennis Space Center (then known as Mississippi Test Operations) taking shape.NASA/Stennis Since the United States sent the first humans to the Moon more than 60 years ago, NASA’s Stennis Space Center near Bay St. Louis, Mississippi, has answered the call to help power the nation’s space dreams.
“History shows NASA Stennis is the country’s premier rocket engine test site and the go-to place for propulsion testing,” NASA Stennis Director John Bailey said. “It started with Apollo and continued through space shuttle. Now, we are going back to the Moon and beyond with Artemis – and it all comes through NASA Stennis.”
As the nation raced to send the first humans to the Moon, NASA selected a remote location in Hancock County, Mississippi, in October 1961 to test the needed rocket stages. Thanks to a massive construction project, the site conducted its first Saturn V rocket stage test in April 1966. In the next four-plus years, NASA Stennis tested 27 Saturn V stages, including those that launched 12 astronauts to walk on the Moon.
“Talking to people working here during those years, you hear how much they believed in the mission,” said Joe Schuyler, director of the NASA Stennis Engineering and Test Directorate. “Their hard work helped America reach the Moon and showed us the possibilities for NASA Stennis.”
Construction workers bring down a tree during the early days of construction for NASA’s Stennis Space Center. Tree-cutting to start what was the largest construction project in Mississippi – and one of the largest in the United States – at the time began May 17, 1963.NASA/Stennis NASA Stennis (then known as the Mississippi Test Facility) conducts its first-ever test firing – a 15-second hot fire of the Saturn V S-II-C second stage prototype – on the A-2 Test Stand on April 23, 1966.NASA/Stennis An aerial image from early 1967 shows the completed A-2 Test Stand in the foreground and the Thad Cochran Test Stand (B-1/B-2) in the background at NASA’s Stennis Space Center, then known as the Mississippi Test Facility.NASA/Stennis NASA officials view the first space shuttle main engine test on the Fred Haise Test Stand (formerly the A-1 Test Stand) at NASA’s Stennis Space Center (then known as National Space Technology Laboratories) on May 19, 1975.NASA/Stennis A 1979 image offers a close-up view of a space shuttle main propulsion test article hot fire on the B-2 side of the Thad Cochran Test Stand at NASA’s Stennis Space Center (then known as National Space Technology Laboratories). Main propulsion test article testing involved installing a shuttle fuel tank, a mockup of the shuttle orbiter and the vehicle’s three-engine configuration on the stand, then firing all three engines simultaneously, as would be done during an actual launch.NASA/Stennis As Apollo missions neared an end, plans were underway to drastically reduce the NASA Stennis footprint. Enter the space shuttle. NASA considered three locations to test engines for its new reusable vehicle before selecting NASA Stennis on March 1, 1970, ensuring the center’s future for the next several decades.
Space shuttle main engine testing proved challenging as the site transitioned from handling full rocket stages to firing single engines. “A big part of the challenge was the fact that teams were testing an entire engine from the very start,” NASA Test Operations Chief Maury Vander said. “Typically, you begin testing components, then progress to a full engine. Teams had a lot to learn in real time.”
NASA Stennis teams also tested the shuttle Main Propulsion Test Article with three engines firing simultaneously. The testing was particularly critical given the first shuttle mission would carry astronauts.
NASA Stennis teams worked diligently to demonstrate the shuttle system would operate safely, an effort characterized as one of the site’s finest hours. Following the first shuttle mission in 1981, astronauts Robert Crippen and John Young visited the south Mississippi site. “The effort that you contributed made it possible for us to sit back and ride,” Crippen told NASA Stennis employees.
From 1975 to 2009, NASA Stennis tested every main engine to help power 135 shuttle missions that enabled historic missions, such as those that deployed and repaired the Hubble Space Telescope and assembled the International Space Station, enabling its many scientific experiments and spinoff technologies. The site also tested every engine and component upgrade and helped troubleshoot performance issues. It led test campaigns following shuttle accidents to help ensure safe returns to flight. In total, the site conducted 2,307 tests for 820,475.68 seconds of accumulated hot fire.
NASA conducts the final test of a space shuttle main engine on the A-2 Test Stand at NASA’s Stennis Space Center on July 29, 2009. The Space Shuttle Program concluded two years later with the STS-135 shuttle mission. NASA / Stennis An on-stand camera offers a closeup view of the first test of an RS-25 engine on the Fred Haise Test Stand (formerly the A-1 Test Stand) at NASA’s Stennis Space Center on Jan. 9, 2015. RS-25 engines power the core stage of NASA’s powerful SLS (Space Launch System) rocket.NASA/Stennis Crews at NASA’s Stennis Space Center install the first core stage of NASA’s powerful SLS (Space Launch System) on the B-2 side of the Thad Cochran Test Stand on Jan. 21-22, 2020. Following testing, the stage would help launch the Artemis I mission in November 2022.NASA/Stennis NASA conducts a full-duration RS-25 hot fire April 3, 2024, on the Fred Haise Test Stand at NASA’s Stennis Space Center, achieving a major milestone for future Artemis flights of NASA’s SLS (Space Launch System) rocket. It marked the final hot fire of a 12-test series to certify production of new RS-25 engines by lead contractor L3Harris (formerly known as Aerojet Rocketdyne) to help power NASA’s SLS rocket on Artemis missions to the Moon and beyond, beginning with Artemis V.NASA/Stennis Even as NASA Stennis tested main engines to power shuttle missions, the site led in testing next-generation engines, including the Fastrac, XRS-2200 linear aerospike, and J-2X. It also developed its E Test Complex, with multiple test stands and cells, to support a range of component and engine test projects, including those of commercial aerospace companies.
A landmark agreement between NASA Stennis and Aerojet Rocketdyne (now known as L3Harris) in 1998 marked the site’s first test partnership with such a company. “That was the starting point,” said Vander. “Today, we are a preferred partner for multiple companies and test projects, large and small.”
NASA Stennis also is testing RS-25 engines and related systems to help power NASA’s SLS (Space Launch System) rocket on Artemis missions to the Moon. When the agency travels to Mars, it is expected the missions will launch with engines tested at the Mississippi site as well.
“The Gulf Coast of Mississippi helped achieve our space dreams of the past, and NASA Stennis continues supporting today’s dreams,” Bailey said. “It is a true testament to the expertise and dedication of our entire team and the incredible support of surrounding communities and the whole state.”
For information about NASA’s Stennis Space Center, visit:
Stennis Space Center – NASA
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Last Updated Nov 13, 2024 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
Stennis Space Center Explore More
5 min read NASA Stennis – An Ideal Place for Commercial Companies
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By NASA
Born and raised in Mexico City, Carlos Fontanot has dedicated 34 years to NASA. He supports the International Space Station Mission Integration and Operations Office, ensuring that high-quality imagery enhances mission objectives and operations.
Fontanot is known for conceiving and leading the High Definition Earth Viewing (HDEV) project, which has brought stunning live visuals of Earth to millions around the globe. As he approaches his well-deserved retirement, we are excited to spotlight Fontanot’s remarkable career, celebrating his contributions to NASA and the lasting impact he has made on the agency’s mission to share the wonders of space.
Carlos Fontanot (left) receives the Great Minds in STEM Lifetime Achievement Award from Joel Montelbano, NASA at the Hispanic Engineer National Achievement Award Conference. What does your position entail?
Integrate all aspects of station imagery, from initial requirements to acquisition, processing, cataloging, archiving, and distribution of station imagery to multiple stakeholders, our clients.
How would you describe your job to family or friends who may not be as familiar with NASA?
I manage an array of television and digital still imagery cameras on the International Space Station. Each day we receive eight channels of high definition (HD) video and thousands of digital images that allow the ground team to see what the crew is doing in their daily lives and as part of scientific activities. In today’s age of social media and high-quality imagery, having these images is crucial for effectively conveying the station narrative.
I also chair the International Space Station’s Multilateral Imagery Working Group. Our team captures and processes the video and still images on a large server, where they are cataloged, archived, and distributed to our clients. Additionally, we are responsible for the photo and TV hardware aboard the space station and provide training to astronauts on how to use this equipment.
Carlos Fontanot with Liam Kennedy at the International Space Station Research and Development Conference. How do you feel the imagery and public affairs teams contribute to the overall mission of NASA?
Imagery is critical for communication in today’s visual environment. If people can’t see it, they won’t believe it! Effective communication through multimedia and pointed messaging is essential for securing continued support for NASA missions from both Congress and the public.
What was your path to NASA?
I was always interested in photography and film, so I studied radio, TV, and film in college. My first job after graduation was with a local TV station, and I also managed a media center for a multinational company. Then, I joined Johnson Space Center’s television and film division, where I managed space shuttle and institutional imagery.
Once at Johnson, I worked in the Office of Public Affairs as the audiovisual manager and served for two years as the public affairs officer in Moscow at the start of the International Space Station Program, including the launch of the first station crew.
What advice would you give to young individuals aspiring to work in the space industry or at NASA?
NASA is not just about astronauts, flight controllers, and engineers—there are countless disciplines and job opportunities here. Take imagery, for example: in today’s digital age, having the highest resolution imagery of our incredible orbiting laboratory environment and our home planet is essential.
For those aspiring to join the NASA team, I encourage you be open-minded and a team player. We need well-educated and talented individuals from diverse backgrounds across all disciplines to help us achieve our goals and explore the wonders of space.
Is there a space figure you’ve looked up to?
The space figure I will always remember and look up to is John Glenn. I had the fortune and privilege to meet him during his training. He was an extraordinary human being with incredibly high goals throughout his career.
I was assigned to escort John Glenn and the STS-95 crew on a two-week official visit to several European countries. John was by far the most inspiring and dedicated crew member that I’d ever met. He was always ready and willing to engage with dignitaries, politicians, leaders, journalists, and the public to share the NASA story and promote future programs to gain support from various governments and the public.
What do you love sharing about the International Space Station to general audiences?
I love sharing the wonders of life in space, especially the unique and breathtaking views of our planet Earth that can only be appreciated from space. I like to tell audiences about the observations and inspiration our astronauts share upon returning from their missions. I emphasize our thin and fragile atmosphere that sustains life as we know it, the beauty of Earth’s deserts, mountains, jungles, and oceans, and most importantly, the absence of borders. There’s always a profound realization that we are all human and that Earth belongs to all of us.
How has the technology for capturing images and video in space evolved over the years?
There was no digital imagery when I started my professional career. Photographs were taken on film that had to be processed in a dark room using chemicals to produce images. Video was recorded on two-inch magnetic tape at low resolution. We even flew film on our spacecraft that had to be brought back and processed on the ground.
Today, in the digital world, images can be streamed directly from our spacecraft and almost instantaneously shared with the entire globe. The evolution of technology has truly transformed how we capture and share the wonders of space!
Carlos Fontanot (left) sets up a NASA imagery exhibit in the Houston Downtown Tunnel System. What are some of the key projects you’ve worked on during your time at NASA? What have been your favorites?
During my time at NASA, I co-led the High Definition Earth Viewing (HDEV) project, which deployed four Earth-viewing cameras on the International Space Station, reaching over 318 million viewers globally. I also contributed to designing Johnson’s new PAO studio, collaborated on upgrading the space station’s downlink system from four standard-definition to eight high-definition channels, and advanced television technology, including the first HD and later UHD live downlinks from the station. These projects have allowed me to enhance NASA’s capacity for sharing space imagery with the world.
What are your plans for retirement, and how do you hope to stay connected to the space community?
I plan to travel across the U.S. in a travel trailer with my wife and dog and enjoying my hobbies I will now have time for, such as photography and spending quality time with my family.
Carlos and Pat Fontanot at the Grand Canyon South Rim in Arizona. How do you believe NASA’s imagery can continue to inspire future generations?
Astronaut John Young would come to the photo lab after every shuttle mission to review the film shot onboard. He would say, “A picture is worth a thousand words.” What can inspire more than a breathtaking image of a sunset captured from space or the aurora borealis over the polar regions?
What legacy do you hope to leave behind after your time at NASA?
I hope to leave behind a legacy of passion and dedication to acquiring and making pristine, high-resolution imagery from space available for the public to enjoy.
If you could have dinner with any astronaut, past or present, who would it be?
I would choose John Young. He flew during both the Apollo and shuttle eras, was an imagery expert, and had a deep understanding of the space station.
Favorite space movie?
Interstellar
NASA Worm or Meatball logo?
Worm
***
Every day we are conducting exciting research aboard our orbiting laboratory that will help us explore farther into space and bring benefits back to people on Earth. You can keep up with the latest news, videos, and pictures about space station science on the Station Research & Technology news page. It is a curated hub of space station research and digital media from Johnson and other centers and space agencies.
Sign up for our weekly email newsletter to get the updates delivered directly to you.
Follow updates on social media at @ISS_Research on X, and on the space station accounts on Facebook and Instagram.
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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions The Solar System The Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets Asteroids, Comets & Meteors The Kuiper Belt The Oort Cloud 4 min read
Sols 4343-4344: Late Slide, Late Changes
NASA’s Mars rover Curiosity acquired this image using its Right Navigation Camera, showing the fractured rock target “Quarter Dome” just above and to the right of the foreground rover structure. The eastern wall of the Gediz Vallis channel can be seen in the distance. This image was taken on sol 4342 — Martian day 4,342 of the Mars Science Laboratory mission — on Oct. 23, 2024, at 12:29:34 UTC. NASA/JPL-Caltech Earth planning date: Wednesday, Oct. 23, 2024
Curiosity is driving along the western edge of the Gediz Vallis channel, heading for a good vantage point before turning westward and leaving the channel behind to explore the canyons beyond. The contact science for “Chuck Pass” on sol 4341 and backwards 30-meter drive (about 98 feet) on sol 4342 completed successfully.
This morning, planning started two hours later than usual. At the end of each rover plan is a baton pass involving Curiosity finishing its activities from the previous plan, transmitting its acquired data to a Mars-orbiting relay satellite passing over Gale Crater, and having that satellite send this data to the Deep Space Network on Earth. This dataset is crucial to our team’s decisions on Curiosity’s next activities. It is not always feasible for us to get our critical data transmitted before the preferred planning shift start time of 8 a.m. This leads to what we call a “late slide,” when our planning days start and end later than usual.
Today’s shift began as the “decisional downlink” arrived just before 10 a.m. PDT. The science planning team jumped into action as the data rolled in, completed plans for two sols of science activities, then had to quickly change those plans completely as the Rover Planners perusing new images from the decisional downlink determined that the position of Curiosity’s wheels after the drive would not support deployment of its arm, eliminating the planned use of APXS, MAHLI, and the DRT on interesting rocks in the workspace. However, the science team was able to pivot quickly and create an ambitious two-sol science plan for Curiosity with the other science instruments.
On sols 4343-4344, Curiosity will focus on examining blocks of finely layered or “laminated” bedrocks in its workspace. The “Backbone Creek” target, which has an erosion resistant vertical fin of dark material, will be zapped by the ChemCam laser to determine composition, and photographed by Mastcam. “Backbone Creek” is named for a stream in the western foothills of the Sierra Nevada of California flowing through a Natural Research Area established to protect the endangered Carpenteria californica woodland shrub. Curiosity is currently in the “Bishop” quadrangle on our map, so all targets in this area of Mount Sharp are named after places in the Sierra Nevada and Owens Valley of California. A neighboring target rock, “Fantail Lake,” which has horizontal fins among its layers, will also be imaged at high resolution by Mastcam. This target name honors a large alpine lake at nearly 10,000 feet just beyond the eastern boundary of Yosemite National Park. A fractured rock dubbed “Quarter Dome,” after a pair of Yosemite National Park’s spectacular granitic domes along the incomparable wall of Tenaya Canyon between Half Dome and Cloud’s Rest, will be the subject of mosaic images for both Mastcam and ChemCam RMI to obtain exquisite detail on delicate layers across its broken surface (see image). The ChemCam RMI telescopic camera will look at light toned rocks on the upper Gediz Vallis ridge. Curiosity will also do a Navcam dust devil movie and mosaic of dust on the rover deck, then determine dust opacity in the atmosphere using Mastcam.
Following this science block, Curiosity will drive about 18 meters (about 59 feet) and perform post-drive imaging, including a MARDI image of the ground under the rover. On sol 4344, the rover will do Navcam large dust devil and deck surveys. It will then use both Navcam and ChemCam for an AEGIS observation of the new location. Presuming that Curiosity ends the drive on more solid footing than today’s location, it will do contact science during the weekend plan, then drive on towards the next fascinating waypoint on our journey towards the western canyons of Mount Sharp.
Written by Deborah Padgett, OPGS Task Lead at NASA’s Jet Propulsion Laboratory
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