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By NASA
2 min read
Hubble Traces Star Formation in a Nearby Nebula
NASA, ESA, and L. C. Johnson (Northwestern University); Image Processing: Gladys Kober (NASA/Catholic University of America) NGC 261 blooms a brilliant ruby red against a myriad of stars in this new image from NASA’s Hubble Space Telescope. Discovered on Sept. 5, 1826 by Scottish astronomer James Dunlop, this nebula is located in one of the Milky Way’s closest galactic companions, the Small Magellanic Cloud (SMC). The ionized gas blazing from within this diffuse region marks NGC 261 as an emission nebula. It is home to numerous stars hot enough to irradiate surrounding hydrogen gas, causing the cloud to emit a pinkish-red glow.
This inset image shows the location of NGC 261 within the Small Magellanic Cloud. NASA, ESA, L. C. Johnson (Northwestern University), and ESO/VISTA VMC; Image Processing: Gladys Kober (NASA/Catholic University of America) Hubble turned its keen eye toward NGC 261 to investigate how efficiently stars form in molecular clouds, which are extremely dense and compact regions of gas and dust. These clouds often consist of large amounts of molecular hydrogen — cold areas where most stars form. However, measuring this raw fuel of star formation in stellar nurseries is a challenge because molecular hydrogen doesn’t radiate easily. Since it is difficult to detect, scientists instead trace other molecules present in the molecular clouds.
The SMC hosts a gas-rich environment of young stars along with trace amounts of carbon monoxide (CO), a chemical correlated with hydrogen and often used to identify the presence of such clouds. Using the Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3), Hubble imaged these stars in the southwest portion of the SMC where NGC 261 resides. The combined power of ACS and WFC3 allowed scientists to closely examine the nebula’s star-forming properties through its CO content at optical and near-infrared wavelengths. This research helps astronomers better understand how stars form in our home galaxy and others in our galactic neighborhood.
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Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov
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Last Updated Aug 28, 2024 Editor Michelle Belleville Location NASA Goddard Space Flight Center Related Terms
Astrophysics Galaxies Goddard Space Flight Center Hubble Space Telescope Stars Keep Exploring Discover More Topics From NASA
Hubble Space Telescope
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA has officially announced the 2025 Revolutionary Aerospace Systems Concepts – Academic Linkage (RASC-AL) competition.Credit: National Institute of Aerospace NASA has officially announced the 2025 Revolutionary Aerospace Systems Concepts – Academic Linkage (RASC-AL) competition, an initiative to fuel innovation for aerospace systems concepts, analogs, and technology prototyping through university engagement. RASC-AL, one of NASA’s longest-running student competitions, solicits concepts from the next generation of engineers and scientists to explore the future of deep space exploration.
RASC-AL is seeking proposals from the university community to develop new concepts that leverage innovation to improve our ability to operate on the Moon, Mars and beyond. This year’s themes range from developing large-scale lunar surface architectures enabling long-term, off-world habitation, to designing new systems that address objective characteristics and needs and leverage human-scale exploration infrastructure for new science paradigms.
Through RASC-AL, teams and their faculty advisors will design innovative solutions with supporting original engineering and analysis in response to one of the following four themes:
Sustained Lunar Evolution – An Inspirational Moment
Advanced Science Missions and Technology Demonstrators for Human-Mars Precursor Campaign
Small Lunar Servicing and Maintenance Robot
“The RASC-AL competition is a wellspring for groundbreaking ideas,” said Dan Mazanek, Assistant Branch Head for the Exploration Space Mission Analysis Branch (SMAB) at NASA’s Langley Research Center in Hampton, Virginia. “It fosters creativity and pushes the boundaries of what is possible in space exploration. We are looking for innovative solutions that can advance our capabilities beyond Earth’s orbit and pave the way for sustainable lunar exploration and beyond.”
Interested undergraduate and graduate university student teams and their faculty advisors should submit a Notice of Intent by October 16, 2024, and submit proposals and videos by February 24, 2025. Based on review of the team proposal and video submissions in March, up to 14 teams will be selected to advance to the final phase of the competition – presenting their concepts to a panel of NASA and industry judges in a competitive design review at the 2025 RASC-AL Forum in Cocoa Beach, Florida next June.
In addition to their research, teams are also highly encouraged to develop a prototype of part or all of their concept to demonstrate its key functions. Each finalist team will receive a $6,500 stipend to facilitate their full participation in the 2025 RASC-AL Competition, and the top two overall teams will be awarded with additional travel stipends to present their concept at an aerospace conference later in 2025.
Dr. Christopher Jones, Chief Technologist for the Systems Analysis and Concepts Directorate (SACD) at NASA Langley, emphasized RASC-AL’s distinctive fusion of educational value with real-world experience. “RASC-AL provides students with a unique opportunity to engage directly with NASA’s vision for space exploration. Participants not only gain hands-on experience in developing aerospace concepts but also contribute fresh perspectives that the Agency can take as inspiration for future missions and technologies.”
The call for proposals is now open, with proposal submissions due by February 24, 2025. Interested student teams are encouraged to visit the official RASC-AL competition website for detailed guidelines and eligibility requirements.
RASC-AL is sponsored by the Strategy and Architecture Office within the Exploration Systems Development Mission Directorate at NASA Headquarters, and by SMAB within SACD at NASA Langley. It is administered by the National Institute of Aerospace.
For more information about the RASC-AL competition, including eligibility, complete themes, and submission guidelines, visit: http://rascal.nianet.org
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Last Updated Aug 01, 2024 Related Terms
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By NASA
2 Min Read Exploring the Moon: Episode Previews
Extravehicular Activity and Human Surface Mobility Program Discover. Learn. Explore.
NASA’s video series, Exploring the Moon, takes a “behind-the-scenes” look at humanity’s next steps on the Moon. Here is your first look at some of the key moments from the upcoming series! Scroll down or navigate through CONTENTS, to the side, to explore!
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Who, What, When, Where, Why, and How…
How many small steps equal a giant leap? Find out what it takes to plan our next great voyage to the Moon, what exactly we plan to do there, and what may come next.
We went to the Moon fifty years ago, but we only explored a very small part of the Moon.
Nujoud Merancy
Exploration Systems Strategy & Architecture Lead
Going to the Moon Won’t Be Easy…
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Episode 01: Why Explore the Moon? Exploring the Moon Series Next-Generation Spacesuits
Explore the special technologies and improvements NASA has made to its spacesuits since the International Space Station (ISS), and how they will be used to make Artemis mission possible.
Basically you should think of a spacesuit as a human-shaped spacecraft.
Liana Rodriggs
Spacesuit Expert
Advancements in Mobility
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Episode 02: Artemis SpacesuitsExploring the Moon Series Spacesuits. How do they work?
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Episode 02: Artemis SpacesuitsExploring the Moon Series Spacewalks: Microgravity vs Planetary
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Episode 02: Artemis SpacesuitsExploring the Moon Series Lunar Rovers
Buckle up and roll out! Learn all about the different capabilities crewed and uncrewed rovers have. Plus, find out how these technologies will be used to explore the lunar surface.
We are taking the ability to transport crew and tools. And these rovers that can operate independent of the crew.
Nathan Howard
Lunar Rovers Expert
Reinventing the Wheel: Apollo to Artemis
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Episode 03: Lunar RoversExploring the Moon Series Simulating the Mission
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Episode 03: Lunar RoversExploring the Moon Series Lunar Geology Tools
How does NASA collect surface samples from the Moon? The answer may surprise you! Explore the challenges of designing the geology sampling equipment for the Artemis missions and how geology sampling technology has changed since Apollo missions.
In order to take these samples on the Moon you need something to pick these samples up with. You can't just walk around and pick them up by hand, that is why we make geology tools.
Holly Newton
Lunar Geology Tools Expert
Lessons Learned from Apollo
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Episode 04: Lunar Geology ToolsExploring the Moon Series Breakthrough! The Ingenuity of Artemis Tools
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Episode 04: Lunar Geology ToolsExploring the Moon Series It’s All In The Finer Details…
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Episode 04: Lunar Geology ToolsExploring the Moon Series Special Lunar Challenges
Learn how NASA engineers are working to prepare for the unique challenges astronauts will face when exploring the Lunar South Pole for the first time ever.
There are parts of the Moon and craters that have not seen the Sun in over a billion years.
Ben Greene
EVA Development Manager
The Challenges Ahead
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Episode 05: Special Lunar ChallengesExploring the Moon Series Dust. Gets. Everywhere.
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Episode 05: Special Lunar ChallengesExploring the Moon Series Exploring the South Pole of the Moon
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Episode 05: Special Lunar ChallengesExploring the Moon Series Back to the "Exploring the Moon" Main Page Keep Exploring Discover More Topics From NASA
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By NASA
Curiosity Navigation Curiosity Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Mars Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions All Planets Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets 3 min read
Sols 4243-4245: Exploring Stubblefield Canyon
This image was taken by Left Navigation Camera onboard NASA’s Mars rover Curiosity on Sol 4241 (2024-07-11 20:34:05 UTC). Earth planning date: Friday, July 12, 2024
Curiosity, now heading uphill from the Mammoth Lakes drill site, has focused on a very interesting exposure of conglomerate rocks, consisting of pebbles cemented together by a fine-grained matrix material. On Earth, conglomerate rock is associated with downhill flows of rock and soil mixtures, often in a water-rich environment, so our science team is excited to find similar rocks on Mars.
The local exposure of this unusual Martian deposit has been named “Stubblefield Canyon,” honoring the headwaters of the stream forming Rancheria Falls, which tumbles into Yosemite National Park’s Hetch Hetchy reservoir. All targets in this area of Mount Sharp are named after geological features near the town of Bishop, California, which sits at the foot of the Sierra Nevada mountains in the Owens Valley of California. Curiosity’s last drive ended at a detached, rubbly conglomerate slab, dubbed “Wishbone Lake” after a Y-shaped lake in upper Lamarck Lake Canyon near Mono Lake. The image above shows the Wishbone Lake slab of conglomerate rock in the rover workspace. Over the weekend, the team will investigate this target and image the surrounding terrain, collecting evidence about the formation of conglomerate rocks on Mars.
On Wednesday, Curiosity successfully completed its MAHLI imaging of “Donohue Pass” and ChemCam laser spectroscopy of “Negit Island,” followed by a 3-meter drive (about 10 feet) to Wishbone Lake. During the current plan, APXS will analyze two pebbles within the Wishbone Lake slab, “Arrowhead Spire” and “Cattle Creek.” Arrowhead Spire honors a 100-foot vertical spike of granite near Yosemite Point, above Yosemite Valley. Cattle Creek is named for a stream that flows from a hanging valley into the Twin Lakes canyon near Bridgeport, California. MAHLI will image Cattle Creek, then do a 4×1 mosaic from a distance of 25 centimeters (about 10 inches) along the edges of Wishbone Lake, centered on the Arrowhead Spire pebble. ChemCam will take laser spectra of Arrowhead Spire, as well as the “Eocene Peak” matrix material target, named for an 11,500-foot peak in the Sawtooth Ridge along the northeastern boundary of Yosemite National Park.
Using its telescopic RMI camera, ChemCam will image upper Gediz Vallis Ridge and a distant ridgeline along our future drive path. Mastcam will photograph the ChemCam laser targets, as well as interesting portions of the Stubblefield Canyon conglomerate exposure, the Mammoth Lakes drill site as seen from our new location, and an interesting linear ridge. On sol 4244, Curiosity will drive 20 meters (about 66 feet) along our path toward “Fairview Dome,” followed by post-drive imaging and AEGIS observations. Atmospheric studies during the current plan include a Navcam dust devil movie and large dust devil survey, early morning Navcam zenith and suprahorizon cloud movies, Navcam deck imaging, Navcam and Mastcam dust opacity measurements, and a late afternoon Mastcam sky survey. Next week, we expect to explore Fairview Dome, then resume our climb up Mount Sharp.
Written by Deborah Padgett, Curiosity Operations Product Generation Subsystem Task Lead at NASA’s Jet Propulsion Laboratory
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Last Updated Jul 16, 2024 Related Terms
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By NASA
ESA/Hubble & NASA, J. Tan (Chal This NASA/ESA Hubble Space Telescope image presents a visually striking collection of interstellar gas and dust. Named RCW 7, the nebula is located just over 5,300 light-years from Earth in the constellation Puppis.
Nebulae are areas rich in the raw material needed to form new stars. Under the influence of gravity, parts of these molecular clouds collapse until they coalesce into very young, developing stars, called protostars, which are still surrounded by spinning discs of leftover gas and dust. The protostars forming in RCW 7 are particularly massive, giving off strongly ionizing radiation and fierce stellar winds that transformed the nebula into a H II region.
H II regions are filled with hydrogen ions — H I refers to a normal hydrogen atom, while H II is hydrogen that lost its electron making it an ion. Ultraviolet radiation from the massive protostars excites the hydrogen in the nebula, causing it to emit light that gives this nebula its soft pinkish glow.
The Hubble data in this image came from the study of a particularly massive protostellar binary named IRAS 07299-1651, still in its glowing cocoon of gas in the curling clouds toward the top of the image. To expose this star and its siblings, astronomers used Hubble’s Wide Field Camera 3 in near-infrared light. The massive protostars in this image are brightest in ultraviolet light, but they emit plenty of infrared light too. Infrared light’s longer wavelength lets it pass through much of the gas and dust in the cloud allowing Hubble to capture it. Many of the larger-looking stars in this image are foreground stars that are not part of the nebula. Instead, they sit between the nebula and our solar system.
The creation of an H II region marks the beginning of the end for a molecular cloud like RCW 7. Within only a few million years, radiation and winds from the massive stars will gradually disperse the nebula’s gas — even more so as the most massive stars come to the end of their lives in supernova explosions. New stars in this nebula will incorporate only a fraction of the nebula’s gas, the rest will spread throughout the galaxy to eventually form new molecular clouds.
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