A planetary scientist who has participated in analog missions describes their value for planning space exploration – and ...

Ancient rocks from Greenland, Canada and Hawaii preserve a rare chemical fingerprint that may come from the Earth before the ...

Harvard’s Avi Loeb says interstellar object 3I/ATLAS is releasing a metal alloy only known from human industry, raising ...

Brian Cox debunks the 'alien probe' theory for interstellar comet 3I/ATLAS. Learn the scientific truth about its ancient ...

This year's meteor shower will also coincide with two comets, promising a dazzling celestial display. Here's how to watch.

Experts claim to have deciphered messages written on mysterious metal Buga sphere - which crashed in South America in March - ...