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Scorching, Seven-Planet System Revealed by New Kepler Exoplanet List
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NASA astronauts Anne McClain (bottom) and Nichole Ayers (top), both Expedition 73 Flight Engineers, checkout spacesuit hardware in the Quest airlock and review procedures for a May 1 spacewalk. Credit: NASA Johnson Space Center NASA astronauts Nichole Ayers and Anne McClain will answer prerecorded questions about science, technology, engineering, and mathematics from students in Bethpage, New York. The two astronauts are currently aboard the International Space Station.
Watch the 20-minute Earth-to-space call at 12:45 p.m. EDT on Friday, May 16, on the NASA STEM YouTube Channel.
Media interested in covering the event must RSVP no later than 5 p.m., Tuesday, May 13, by contacting Francesca Russell at: frussell@syntaxny.com or 516-644-4330.
The event is hosted by Central Boulevard Elementary School. As part of the call, students will highlight their year-long reading program, “Reading is a Blast-Exploring a Universe of Stories.”
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 of astronauts aboard the space station at:
https://www.nasa.gov/stemonstation
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Gerelle Dodson
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Sandra Jones
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Last Updated May 09, 2025 LocationNASA Headquarters Related Terms
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Explore This Section Webb News Latest News Latest Images Webb’s Blog Awards X (offsite – login reqd) Instagram (offsite – login reqd) Facebook (offsite- login reqd) Youtube (offsite) Overview About Who is James Webb? Fact Sheet Impacts+Benefits FAQ Science Overview and Goals Early Universe Galaxies Over Time Star Lifecycle Other Worlds Observatory Overview Launch Deployment Orbit Mirrors Sunshield Instrument: NIRCam Instrument: MIRI Instrument: NIRSpec Instrument: FGS/NIRISS Optical Telescope Element Backplane Spacecraft Bus Instrument Module Multimedia About Webb Images Images Videos What is Webb Observing? 3d Webb in 3d Solar System Podcasts Webb Image Sonifications Team International Team People Of Webb More For the Media For Scientists For Educators For Fun/Learning 5 Min Read New Visualization From NASA’s Webb Telescope Explores Cosmic Cliffs
The landscape of “mountains” and “valleys” known as the Cosmic Cliffs is actually a portion of the nebula Gum 31, which contains a young star cluster called NGC 3324. Both Gum 31 and NGC 3324 are part of a vast star-forming region known as the Carina Nebula Complex. Credits:
NASA, ESA, CSA, STScI. In July 2022, NASA’s James Webb Space Telescope made its public debut with a series of breathtaking images. Among them was an ethereal landscape nicknamed the Cosmic Cliffs. This glittering realm of star birth is the subject of a new 3D visualization derived from the Webb data. The visualization, created by NASA’s Universe of Learning and titled “Exploring the Cosmic Cliffs in 3D,” breathes new life into an iconic Webb image.
It is being presented today at a special event hosted by the International Planetarium Society to commemorate the 100th anniversary of the first public planetarium in Munich, Germany.
The landscape of “mountains” and “valleys” known as the Cosmic Cliffs is actually a portion of the nebula Gum 31, which contains a young star cluster called NGC 3324. Both Gum 31 and NGC 3324 are part of a vast star-forming region known as the Carina Nebula Complex.
Ultraviolet light and stellar winds from the stars of NGC 3324 have carved a cavernous area within Gum 31. A portion of this giant bubble is seen above the Cosmic Cliffs. (The star cluster itself is outside this field of view.)
The Cliffs display a misty appearance, with “steam” that seems to rise from the celestial mountains. In actuality, the wisps are hot, ionized gas and dust streaming away from the nebula under an onslaught of relentless ultraviolet radiation.
Eagle-eyed viewers may also spot particularly bright, yellow streaks and arcs that represent outflows from young, still-forming stars embedded within the Cosmic Cliffs. The latter part of the visualization sequence swoops past a prominent protostellar jet in the upper right of the image.
Video: Exploring the Cosmic Cliffs in 3D
In July 2022, NASA’s James Webb Space Telescope made history, revealing a breathtaking view of a region now nicknamed the Cosmic Cliffs. This glittering landscape, captured in incredible detail, is part of the nebula Gum 31 — a small piece of the vast Carina Nebula Complex — where stars are born amid clouds of gas and dust.
This visualization brings Webb’s iconic image to life — helping us imagine the true, three-dimensional structure of the universe… and our place within it.
Produced for NASA by the Space Telescope Science Institute (STScI) with partners at Caltech/IPAC, and developed by the AstroViz Project of NASA’s Universe of Learning, this visualization is part of a longer, narrated video that provides broad audiences, including youth, families, and lifelong learners, with a direct connection to the science and scientists of NASA’s Astrophysics missions. That video enables viewers to explore fundamental questions in science, experience how science is done, and discover the universe for themselves.
“Bringing this amazing Webb image to life helps the public to comprehend the three-dimensional structure inherent in the 2D image, and to develop a better mental model of the universe,” said STScI’s Frank Summers, principal visualization scientist and leader of the AstroViz Project.
More visualizations and connections between the science of nebulas and learners can be explored through other products produced by NASA’s Universe of Learning including a Carina Nebula Complex resource page and ViewSpace, a video exhibit that is currently running at almost 200 museums and planetariums across the United States. Visitors can go beyond video to explore the images produced by space telescopes with interactive tools now available for museums and planetariums.
NASA’s Universe of Learning materials are based upon work supported by NASA under award number NNX16AC65A to the Space Telescope Science Institute, working in partnership with Caltech/IPAC, Center for Astrophysics | Harvard & Smithsonian, and NASA’s Jet Propulsion Laboratory.
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).
NASA’s Universe of Learning is part of the NASA Science Activation program, from the Science Mission Directorate at NASA Headquarters. The Science Activation program connects NASA science experts, real content and experiences, and community leaders in a way that activates minds and promotes deeper understanding of our world and beyond. Using its direct connection to the science and the experts behind the science, NASA’s Universe of Learning provides resources and experiences that enable youth, families, and lifelong learners to explore fundamental questions in science, experience how science is done, and discover the universe for themselves.
To learn more about Webb, visit:
https://science.nasa.gov/webb
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Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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Space Telescope Science Institute, Baltimore, Md.
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Explore more: Carina Nebula Complex from NASA’s Universe of Learning
Read more: Webb’s view of the Cosmic Cliffs
Listen: Carina Nebula sonification
Read more: Webb’s star formation discoveries
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Last Updated May 07, 2025 Editor Marty McCoy Contact Laura Betz laura.e.betz@nasa.gov Related Terms
James Webb Space Telescope (JWST) Astrophysics Goddard Space Flight Center Nebulae Science & Research Star-forming Nebulae Stars The Universe View the full article
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Dave Gallagher will become the director of NASA’s Jet Propulsion Laboratory in Southern California on Monday, June 2. Credit: NASA/JPL-Caltech The following is a statement from acting NASA Administrator Janet Petro on the appointment of David Gallagher as director of the agency’s Jet Propulsion Laboratory (JPL) in Southern California. NASA JPL announced Wednesday Laurie Leshin would step down effective Sunday, June 1.
“Laurie Leshin’s leadership at JPL has been nothing short of extraordinary. She brought a sharp scientific mind, a strong sense purpose, and a clear vision that helped propel the lab forward during a pivotal time. From groundbreaking missions to remarkable technological milestones, Laurie advanced JPL’s legacy of exploration and innovation. We are grateful for her service and wish her the very best as she continues to inspire in the next phase of her career.
“I’m equally confident in Dave Gallagher’s ability to lead JPL’s next chapter. He brings decades of experience, a steady hand, and a deep understanding of what makes JPL unique. With Dave at the helm, JPL remains well-positioned to continue delivering for NASA and the nation – pushing the boundaries of science and discovery for the benefit of all.”
For more information about NASA, visit:
https://www.nasa.gov
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By NASA
NASA and the Sam Houston Area Council (SHAC) of Scouting America signed a collaborative Space Act Agreement on December 17, 2024, expanding youth access to programs and opportunities with the Johnson Space Center’s Office of STEM Engagement (OSTEM) in Houston.
The agreement forges the first formal partnership between NASA OSTEM and Scouting America. It will leverage NASA’s educational outreach programs to enrich scout activities and experiences while providing the agency with new opportunities to engage youth around its mission, vision, and goals.
NASA Acting Associate Administrator Vanessa Wyche (left), at the time serving as director of Johnson Space Center, and Sam Houston Area Council of Scouting America Executive Officer Marvin Smith sign a Space Act Agreement on Dec. 17, 2024. NASA/James Blair “Our ability to explore the unknown and innovate for the benefit of all humanity depends on a highly skilled and competitive STEM workforce,” said NASA Acting Associate Administrator Vanessa Wyche. “Together with SHAC, we can inspire future generations of explorers, scientists, and engineers to help us take the next giant leap toward exciting discoveries.”
The agreement has already enabled NASA and SHAC to collaborate on a new space-focused summer experience at Camp Strake, the council’s premier camping facility in Southeast Texas. During the weeklong program, scouts will participate in hands-on STEM activities created in partnership with NASA, tour Johnson Space Center, attend robotics and space exploration workshops, and get an in-depth look at NASA’s current projects. SHAC serves approximately 25,000 youth in 16 counties in Southeast Texas.
Wyche and Johnson leadership presented Smith and members of local scout troops with an American flag that flew aboard NASA’s SpaceX Crew-8 mission. NASA/James Blair “NASA and SHAC share common goals of growing youth interest in science, technology, engineering, and math careers, and providing access to programs and experiences that prepare them to enter the STEM workforce,” said Gamaliel Cherry, director of Johnson’s Office of STEM Engagement. “We are excited to connect more students to NASA’s mission, work, and people through this partnership.”
NASA OSTEM provides opportunities for the next generation of explorers to discover and hone the science, technology, engineering, and math skills needed for the agency’s bold exploration plans.
For the latest NASA STEM events, news, and activities for students at any grade level, visit:
https://stem.nasa.gov
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Explore This Section Webb News Latest News Latest Images Webb’s Blog Awards X (offsite – login reqd) Instagram (offsite – login reqd) Facebook (offsite- login reqd) Youtube (offsite) Overview About Who is James Webb? Fact Sheet Impacts+Benefits FAQ Science Overview and Goals Early Universe Galaxies Over Time Star Lifecycle Other Worlds Observatory Overview Launch Deployment Orbit Mirrors Sunshield Instrument: NIRCam Instrument: MIRI Instrument: NIRSpec Instrument: FGS/NIRISS Optical Telescope Element Backplane Spacecraft Bus Instrument Module Multimedia About Webb Images Images Videos What is Webb Observing? 3d Webb in 3d Solar System Podcasts Webb Image Sonifications Team International Team People Of Webb More For the Media For Scientists For Educators For Fun/Learning 6 Min Read NASA’s Webb Lifts Veil on Common but Mysterious Type of Exoplanet
This artist’s concept shows what the hot sub-Neptune exoplanet TOI-421 b could look like. It is based on spectroscopic data gathered by Webb, as well as previous observations from other telescopes on the ground and in space. Credits:
Illustration: NASA, ESA, CSA, Dani Player (STScI) Though they don’t orbit around our Sun, sub-Neptunes are the most common type of exoplanet, or planet outside our solar system, that have been observed in our galaxy. These small, gassy planets are shrouded in mystery…and often, a lot of haze. Now, by observing exoplanet TOI-421 b, NASA’s James Webb Space Telescope is helping scientists understand sub-Neptunes in a way that was not possible prior to the telescope’s launch.
“I had been waiting my entire career for Webb so that we could meaningfully characterize the atmospheres of these smaller planets,” said principal investigator Eliza Kempton of the University of Maryland, College Park. “By studying their atmospheres, we’re getting a better understanding of how sub-Neptunes formed and evolved, and part of that is understanding why they don’t exist in our solar system.”
Image A: Artist’s Concept of TOI-421 b
This artist’s concept shows what the hot sub-Neptune exoplanet TOI-421 b could look like. It is based on spectroscopic data gathered by Webb, as well as previous observations from other telescopes on the ground and in space. Illustration: NASA, ESA, CSA, Dani Player (STScI) Small, Cool, Shrouded in Haze
The existence of sub-Neptunes was unexpected before they were discovered by NASA’s retired Kepler space telescope in the last decade. Now, astronomers are trying to understand where these planets came from and why are they so common.
Before Webb, scientists had very little information on them. While sub-Neptunes are a few times larger than Earth, they are still much smaller than gas-giant planets and typically cooler than hot Jupiters, making them much more challenging to observe than their gas-giant counterparts.
A key finding prior to Webb was that most sub-Neptune atmospheres had flat or featureless transmission spectra. This means that when scientists observed the spectrum of the planet as it passed in front of its host star, instead of seeing spectral features – the chemical fingerprints that would reveal the composition of the atmosphere – they saw only a flat-line spectrum. Astronomers concluded from all of those flat-line spectra that at least certain sub-Neptunes were probably very highly obscured by either clouds or hazes.
Image B: Spectrum of TOI-421 b
A transmission spectrum captured by NASA’s James Webb Space Telescope reveals chemicals in the atmosphere of the hot sub-Neptune exoplanet TOI-421 b. Illustration: NASA, ESA, CSA, Joseph Olmsted (STScI) A Different Kind of Sub-Neptune?
“Why did we observe this planet, TOI-421 b? It’s because we thought that maybe it wouldn’t have hazes,” said Kempton. “And the reason is that there were some previous data that implied that maybe planets over a certain temperature range were less enshrouded by haze or clouds than others.”
That temperature threshold is about 1,070 degrees Fahrenheit. Below that, scientists hypothesized that a complex set of photochemical reactions would occur between sunlight and methane gas, and that would trigger the haze. But hotter planets shouldn’t have methane and therefore perhaps shouldn’t have haze.
The temperature of TOI-421 b is about 1,340 degrees Fahrenheit, well above the presumed threshold. Without haze or clouds, researchers expected to see a clear atmosphere – and they did!
A Surprising Finding
“We saw spectral features that we attribute to various gases, and that allowed us to determine the composition of the atmosphere,” said the University of Maryland’s Brian Davenport, a third-year Ph.D. student who conducted the primary data analysis. “Whereas with many of the other sub-Neptunes that had been previously observed, we know their atmospheres are made of something, but they’re being blocked by haze.”
The team found water vapor in the planet’s atmosphere, as well as tentative signatures of carbon monoxide and sulfur dioxide. Then there are molecules they didn’t detect, such as methane and carbon dioxide. From the data, they can also infer that a large amount of hydrogen is in TOI-421 b’s atmosphere.
The lightweight hydrogen atmosphere was the big surprise to the researchers. “We had recently wrapped our mind around the idea that those first few sub-Neptunes observed by Webb had heavy-molecule atmospheres, so that had become our expectation, and then we found the opposite,” said Kempton. This suggests TOI-421 b may have formed and evolved differently from the cooler sub-Neptunes observed previously.
Is TOI-421 b Unique?
The hydrogen-dominated atmosphere is also interesting because it mimics the composition of TOI-421 b’s host star. “If you just took the same gas that made the host star, plopped it on top of a planet’s atmosphere, and put it at the much cooler temperature of this planet, you would get the same combination of gases. That process is more in line with the giant planets in our solar system, and it is different from other sub-Neptunes that have been observed with Webb so far,” said Kempton.
Aside from being hotter than other sub-Neptunes previously observed with Webb, TOI-421 b orbits a Sun-like star. Most of the other sub-Neptunes that have been observed so far orbit smaller, cooler stars called red dwarfs.
Is TOI-421b emblematic of hot sub-Neptunes orbiting Sun-like stars, or is it just that exoplanets are very diverse? To find out, the researchers would like to observe more hot sub-Neptunes to determine if this is a unique case or a broader trend. They hope to gain insights into the formation and evolution of these common exoplanets.
“We’ve unlocked a new way to look at these sub-Neptunes,” said Davenport. “These high-temperature planets are amenable to characterization. So by looking at sub-Neptunes of this temperature, we’re perhaps more likely to accelerate our ability to learn about these planets.”
The team’s findings appear on May 5 in the Astrophysical Journal Letters.
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).
To learn more about Webb, visit:
https://science.nasa.gov/webb
Downloads
Click any image to open a larger version.
View/Download all image products at all resolutions for this article from the Space Telescope Science Institute.
Media Contacts
Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Ann Jenkins – jenkins@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Hannah Braun – hbraun@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Related Information
Webb Blog: Reconnaissance of Potentially Habitable Worlds with NASA’s Webb
Video: How to Study Exoplanets
Article: Webb’s Impact on Exoplanet Research
Video: How do we learn about a planet’s Atmosphere?
Learn more about exoplanets
More Webb News
More Webb Images
Webb Science Themes
Webb Mission Page
Related For Kids
What is the Webb Telescope?
SpacePlace for Kids
En Español
Ciencia de la NASA
NASA en español
Space Place para niños
Keep Exploring Related Topics
James Webb Space Telescope
Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the…
Exoplanets
Exoplanet Stories
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Last Updated May 04, 2025 Editor Marty McCoy Contact Laura Betz laura.e.betz@nasa.gov Related Terms
James Webb Space Telescope (JWST) Astrophysics Exoplanets Goddard Space Flight Center Science & Research The Universe View the full article
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