NASA Is Studying a Private Mission to Boost Hubble’s Orbit. Is It Worth the Risk?
SpaceX and the entrepreneur Jared Isaacman are pursuing a plan to rescue the iconic Hubble Space Telescope from a fiery plunge into Earth’s atmosphere
Dying NASA Spacecraft Records Epic ‘Marsquakes’
As the InSight lander reports the largest-ever meteorite strikes on Mars, scientists wish it a fond farewell
Life on Mars May Have Been Its Own Worst Enemy
A new study suggests that billions of years ago microbes may have thrived on Mars before succumbing to freezing temperatures of their own making
Earthly Microbes Might Survive on Mars for Hundreds of Millions of Years
An organism nicknamed “Conan the Bacterium” may have what it takes to live on Mars
Space Station Experiment Maps Earth’s Methane ‘Super Emitters’
NASA’s EMIT instrument has found more than 50 methane super emitters in its first few months of operation—and that’s not even its main job
First Known Map of Night Sky Found Hidden in Medieval Parchment
The fabled star catalog from the ancient Greek astronomer Hipparchus had been feared lost
Hopes Fade for Resurrecting Puerto Rico’s Famous Arecibo Telescope
Nearly two years after the collapse of its 305-meter radio telescope, the Arecibo Observatory’s fate has been decided. The iconic giant dish will not be rebuilt, but research and public outreach at the site may continue
Jupiter’s Ocean Moon Europa Is Ready for Its Close-up
Fresh data from the Juno probe’s flyby of Europa could help scientists learn whether this icy moon of Jupiter is habitable—or even inhabited
DART’s Smashing Success Shows Humanity Can Divert Asteroids
NASA confirms that its DART spacecraft nudged the asteroid Dimorphos into a new orbit
‘Bit of Panic’: Astronomers Forced to Rethink Early JWST Findings
Revised calibrations for the James Webb Space Telescope’s instruments are bedeviling researchers studying the distant universe
Fresh Images Reveal Fireworks from DART’s Asteroid Impact
The celestial crash between NASA’s DART spacecraft and the asteroid Dimorphos is yielding spectacular pictures and data
China’s Mars Rover Finds Hints of Catastrophic Floods
Radar images from the Zhurong rover reveal clues to the history of a largely unexplored region