Solar system

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

The fabled star catalog from the ancient Greek astronomer Hipparchus had been feared lost

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

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

NASA confirms that its DART spacecraft nudged the asteroid Dimorphos into a new orbit

Revised calibrations for the James Webb Space Telescope’s instruments are bedeviling researchers studying the distant universe

The celestial crash between NASA’s DART spacecraft and the asteroid Dimorphos is yielding spectacular pictures and data

Radar images from the Zhurong rover reveal clues to the history of a largely unexplored region

The DART spacecraft has purposefully crashed into the asteroid Dimorphos, hopefully changing its orbit by a few minutes, in a milestone test of future planetary defense techniques

September 26 marks an unmissable chance to view the massive planet Jupiter, whose opposition and perigee very rarely coincide

See a stunning new view of Neptune’s rings and oddball moon Triton from the James Webb Space Telescope

The DART mission to redirect an asteroid could be just the beginning of a robust planetary-defense program