Interstellar object 3I/ATLAS no longer has a tail, defying behavior for a “typical comet,” and adding to mystery surrounding ...

NASA’s Habitable Worlds Observatory "will draw on technologies proven by the agency’s Hubble, Webb and upcoming Roman Space ...

The comet is the third interstellar object from deep space ever recorded to pass through Earth’s solar system.

A Flagstaff-based space company has won a $30 million contract to raise the orbit of a space-based NASA observatory next year ...

Water discoveries in space happen all the time. But this one’s actually a big deal, and not just because some scientists got ...

Sydney scientists fixed NASA’s James Webb Space Telescope without ever leaving Earth. Using AI-powered software called AMIGO, ...

A tremendous effort is underway at NASA to send humans to Mars and return astronauts to the moon, including the flight  of ...

When 3I/ATLAS blazed into view this summer, astronomers and sky-watchers alike were captivated. Reports erupted across social ...

Scientists were surprised to note that 3I/ATLAS brightened much faster than they anticipated during its perihelion last week.

A new NASA space observatory is scheduled to launch into orbit Sunday on a lofty mission to map more than 450 million galaxies. The SPHEREx mission (short for Spectro-Photometer for the History of the ...

NASA reveals that a particle wind powers pulsar J1023, aligning optical and X-ray polarization, which calls existing models ...

Unusual radio signals from beneath Antarctica’s ice continue to defy explanation. Several years ago, scientists using a ...