We frequently question whether we are alone in the universe. If not, what does intelligent life look like? And how would ...

Interstellar comet 3I/ATLAS has gone from obscure visitor to front‑page mystery, as a cascade of new images reveals behavior ...

NASA will return four astronauts to Earth early from the International Space Station due to a medical concern with one of the ...

The James Webb Space Telescope (JWST) is a large space telescope which collects light at infrared wavelengths. It has been ...

Humans may, one day, be able to inhabit other planets. Some advocates argue that remaining on only one courts disaster.

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

A NASA team using the Hubble Space Telescope found an object in space never recorded before, nicknamed “Cloud-9.” ...