NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if Mars weren't there?" ...

NASA and the US Department of Energy plan to deploy a nuclear fission reactor on the Moon by 2030, powering Artemis missions ...

Because the moon has less gravity than Earth does, time passes slightly differently there. This effect was first predicted by ...

Though Artemis II will not be landing on the lunar surface – Nasa aims to put boots on the ground by 2030, though China is ...

When interstellar visitor 3I/ATLAS exhibited some peculiar movements, speculation arose regarding potential alien origins.

Harvard astrophysicist Avi Loeb's speculative claim that 3I/ATLAS could be an alien AI probe ignites scientific debate, NASA ...

Hidden in the Gobi Desert of Mongolia, these surreal cliffs have an alien feel. Perfectly barren and wind-carved, it’s a ...

Somehow, 26 new species of bacteria have managed to survive in the harshest place on Earth -- a NASA cleanroom.

NASA and Breakthrough Listen issue a final verdict on the interstellar comet 3I/ATLAS. Is it an alien spaceship? Read the ...

Harvard's Avi Loeb says a rare sun alignment on 22 January could prove interstellar visitor 3I/ATLAS is an alien spaceship.