If life exists beyond Earth, water may be the first clue. Water Worlds explores the planets and moons where liquid water ...

The infrared James Webb telescope is 100 times more powerful than the Hubble telescope. It has 18 separate mirror segments made of ultra-lightweight beryllium.

In the ’80s, E.T. “phoned home,” but according to 2025 reports, he may be trying to contact us in Pennsylvania — they must ...

Is 3I/ATLAS a natural comet or an alien probe? Harvard's Avi Loeb explores the mystery of its sunward 'anti-tail' and what it ...