On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 ...

NASA’s Europa Clipper spacecraft has recorded important new observations of the interstellar comet 3I/ATLAS using its Southwest Research Institute-led Ultraviolet Spectrograph (UVS). In July, 3I/ATLAS ...

The liquid ocean on Jupiter’s moon Europa appears to be completely sealed off from the planet’s surface, which may reduce the ...

NASA spacecraft Parker Solar Probe and Europa Clipper observed interstellar comet 3I/ATLAS before its close approach to Earth. Scientists are studying the data as the comet heads toward Jupiter in 202 ...

Scientists are turning their attention to a rare interstellar encounter expected in March 2026, when comet 3I/ATLAS is ...

As the interstellar comet 3I/ATLAS approaches Jupiter on 16 March 2026, scientists will be watching for more than just conventional cometary patterns. Harvard astrophysicist Avi Loeb has suggested ...

The controversial Harvard astronomer is one of the main sources of the "alien mothership" hypothesis. This is what he thinks, ...

ESA’s Juice spacecraft observed interstellar comet 3I/ATLAS in November 2025, capturing NavCam images and collecting instrument data, with full science results expected to arrive on Earth in February ...

Humanity has sent into space everything from lightsabers and Tesla Roadsters to golden records and entire digital genetic ...

3I/ATLAS came within 168 million miles of Earth around midnight CST Friday. While that might seem pretty far away, the ...

NASA’s Europa Clipper spacecraft has observed interstellar comet 3I/ATLAS, collecting rare data as the ancient object made ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.