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By NASA
NASA astronaut and Expedition 72 flight engineer Anne McClain is pictured near one of the International Space Station’s main solar arrays during a spacewalk.NASA/Nichole Ayers In this May 1, 2025, photo taken by fellow NASA astronaut Nichole Ayers, Anne McClain works near one of the International Space Station’s main solar arrays during a spacewalk. During the May 1 spacewalk – McClain’s third and Ayers’ first – the astronaut pair relocated a space station communications antenna and completed the initial mounting bracket installation steps for an International Space Station Rollout Solar Array, or IROSA, that will arrive on a future SpaceX commercial resupply services mission, in addition to some get ahead tasks.
Learn more about station activities by following the space station blog.
Image credit: NASA/Nichole Ayers
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By NASA
3 min read
Help Classify Galaxies Seen by NASA’s James Webb Space Telescope!
The Galaxy Zoo classification interface shows you an image from NASA’s Webb telescope and asks you questions about it. Image credit: Galaxy Zoo, Zooniverse. Inset galaxy: NASA/STScI/CEERS/TACC/S. Finkelstein/M. Bagley/Z. Levay/A. Pagan NASA needs your help identifying the shapes of thousands of galaxies in images taken by our James Webb Space Telescope with the Galaxy Zoo project. These classifications will help scientists answer questions about how the shapes of galaxies have changed over time, what caused these changes, and why. Thanks to the light collecting power of Webb, there are now over 500,000 images of galaxies on website of the Galaxy Zoo citizen science project—more images than scientists can classify by themselves.
“This is a great opportunity to see images from the newest space telescope,” said volunteer Christine Macmillan from Aberdeen, Scotland. “Galaxies at the edge of our universe are being seen for the first time, just as they are starting to form. Just sign up and answer simple questions about the shape of the galaxy that you are seeing. Anyone can do it, ages 10 and up!”
As we look at more distant objects in the universe, we see them as they were billions of years ago because light takes time to travel to us. With Webb, we can spot galaxies at greater distances than ever before. We’re seeing what some of the earliest galaxies ever detected look like, for the first time. The shapes of these galaxies tell us about how they were born, how and when they formed stars, and how they interacted with their neighbors. By looking at how more distant galaxies have different shapes than close galaxies, we can work out which processes were more common at different times in the universe’s history.
At Galaxy Zoo, you’ll first examine an image from the Webb telescope. Then you will be asked several questions, such as ‘Is the galaxy round?’, or ‘Are there signs of spiral arms?’. If you’re quick, you may even be the first person to see the galaxies you’re asked to classify.
“I’m amazed and honored to be one of the first people to actually see these images! What a privilege!” said volunteer Elisabeth Baeten from Leuven, Belgium.
Galaxy Zoo is a citizen science project with a long history of scientific impact. Galaxy Zoo volunteers have been exploring deep space since July 2007, starting with a million galaxies from a telescope in New Mexico called the Sloan Digital Sky Survey and then, moving on to images from space telescopes like NASA’s Hubble Space Telescope and ESA (European Space Agency)’s Euclid telescope. The project has revealed spectacular mergers, taught us about how the black holes at the center of galaxies affect their hosts, and provided insight into how features like spiral arms form and grow.
Now, in addition to adding new data from Webb, the science team has incorporated an AI algorithm called ZooBot, which will sift through the images first and label the ‘easier ones’ where there are many examples that already exist in previous images from the Hubble Space Telescope. When ZooBot is not confident on the classification of a galaxy, perhaps due to complex or faint structures, it will show it to users on Galaxy Zoo to get their human classifications, which will then help ZooBot learn more. Working together, humans and AI can accurately classify limitless numbers of galaxies. The Galaxy Zoo science team acknowledges support from the International Space Sciences Institute (ISSI), who provided funding for the team to get together and work on Galaxy Zoo. Join the project now.
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Last Updated Apr 29, 2025 Related Terms
Astrophysics Division Citizen Science Get Involved James Webb Space Telescope (JWST) Explore More
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By NASA
NASA astronaut and Expedition 73 Flight Engineer Jonny KimCredit: Gagarin Cosmonaut Training Center Students from Santa Monica, California, will connect with NASA astronaut Jonny Kim as he answers prerecorded science, technology, engineering, and mathematics-related questions aboard the International Space Station.
Watch the 20-minute space-to-Earth call at 12:10 p.m. EDT on Tuesday, April 29, on the NASA STEM YouTube Channel.
Media interested in covering the event must RSVP by 5 p.m., Friday, April 25, to Esmi Careaga at: ecareaga@smmusd.org or 805-651-3204 x71582.
The event is hosted by Santa Monica High School, Kim’s alma mater, and includes students from Roosevelt Elementary School and Lincoln Middle School in Santa Monica. The schools hope to inspire students to follow their dreams and explore their passions through curiosity, service, and interest in learning.
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 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 23, 2025 LocationNASA Headquarters Related Terms
NASA Headquarters Humans in Space International Space Station (ISS) Johnson Space Center View the full article
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By NASA
NASA astronaut and Expedition 72 Flight Engineer Don Pettit sets up camera hardware to photograph research activities inside the International Space Station’s Kibo laboratory module on March 15, 2025.Credit: NASA Media are invited to a news conference at 2 p.m. EDT Monday, April 28, at NASA’s Johnson Space Center in Houston where astronaut Don Pettit will share details of his recent mission aboard the International Space Station.
The news conference will stream live on NASA’s website. Learn how to stream NASA content through a variety of platforms.
To participate in person, U.S. media must contact the NASA Johnson newsroom no later than 5 p.m. Thursday, April 24, at 281-483-5111 or jsccommu@mail.nasa.gov. Media wishing to participate by phone must contact the newsroom no later than two hours before the start of the event. To ask questions by phone, media must dial into the news conference no later than 10 minutes prior to the start of the call. NASA’s media accreditation policy is available online.
Questions also may be submitted on social media during the news conference by using #AskNASA. Following the news conference, NASA will host a live question and answer session with Pettit on the agency’s Instagram. For more information, visit @NASA on social media.
Pettit returned to Earth on April 19 (April 20, Kazakhstan time), along with Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner. Pettit celebrated his 70th birthday on April 20. He spent 220 days in space as an Expedition 71/72 flight engineer, bringing his career total to 590 days in space during four spaceflights. Pettit and his crewmates completed 3,520 orbits of Earth over the course of their 93-million-mile journey. They also saw the arrival of six visiting spacecraft and the departure of seven.
During his time on orbit, Pettit conducted hundreds of hours of scientific investigations, including research to enhance on-orbit metal 3D printing capabilities, advance water sanitization technologies, explore plant growth under varying water conditions, and investigate fire behavior in microgravity, all contributing to future space missions.
He also spent time aboard the space station sharing his photography, often posting images to his X account. He took more than 670,000 photos during his stay.
Learn more about International Space Station research and operations at:
http://www.nasa.gov/station
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Joshua Finch / Claire O’Shea
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / claire.a.o’shea@nasa.gov
Chelsey Ballarte
Johnson Space Center, Houston
281-483-5111
chelsey.n.ballarte@nasa.gov
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Last Updated Apr 23, 2025 LocationNASA Headquarters Related Terms
International Space Station (ISS) Astronauts Humans in Space ISS Research Johnson Space Center View the full article
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