NASA’s Curiosity rover has uncovered some of the largest organic molecules ever detected on Mars, and scientists say ordinary geology may not fully explain them.

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A recent study showed that Mars was warm and wet billions of years ago. The finding contrasts with another theory that this era was mainly cold and icy. The result has implications for the idea that ...

Subterranean caves might be the safest place for people to live on the moon, and the trio of SherpaTT, Coyote III, and LUVMI-X are meant to scope them out.

While the technology still needs significant work, a new analysis of meteorites points to valuable targets in the solar ...

EARTH cannot defend itself against the thousands of “city killer” asteroids that are zooming around space near our planet, Nasa chiefs warn. They reckon there are about 15,000 undetected ...

NASA's head of planetary defence has revealed what keeps her up at night - tens of thousands of 'city killer' asteroids that remain undetected.