Painting Galaxy Clusters by Numbers (and Physics)
X-ray: NASA/CXC/Univ. of Chicago/H. McCall Galaxy clusters are the most massive objects in the universe held together by gravity, containing
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Science
XRISM Finds Chlorine, Potassium in Cas A
This composite image of the Cassiopeia A (or Cas A) supernova remnant, released Jan. 8, 2024, contains X-rays from Chandra
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Artemis II Vehicle Manager Branelle Rodriguez Gets Orion Ready for “Go”
By the time the Artemis II Orion spacecraft launches to the Moon next year, its many components will already have
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Invention Challenge Brings Student Engineers to NASA JPL
Student teams competed in the 2025 Invention Challenge at NASA’s Jet Propulsion Laboratory on Dec. 5. The event pits middle
Read MoreHubble Spots a Storm of New Stars
Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the NumbersAt the MuseumFAQsImpact & BenefitsHubble’s
Read MoreTesting Drones for Mars in the Mojave Desert
NASA/JPL-Caltech Researchers from NASA’s Jet Propulsion Laboratory monitor a research drone in this September 2025 photo. This flight occurred in
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NASA Wins Second Emmy Award for 2024 Total Solar Eclipse Broadcast
3 min readPreparations for Next Moonwalk Simulations Underway (and Underwater) NASA’s broadcast of the April 8, 2024, total solar eclipse
Read MoreNASA Completes Nancy Grace Roman Space Telescope Construction
NASA’s next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer
Read MoreNASA Sets Coverage for Astronaut Jonny Kim, Crewmates Return
The Soyuz MS-26 spacecraft is seen as it lands on April 20, 2025 (April 19 Eastern time) in a remote
Read MoreNASA’s Nancy Grace Roman Space Telescope Completed
Over the course of several hours, technicians meticulously connected the inner and outer segments of NASA’s Nancy Grace Roman Space
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