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

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

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

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

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

Normally, NASA overlaps incoming and outgoing crews aboard the ISS, but with the possibility of evacuating Crew-11 before ...