Scientists detected gases on exoplanet K2-18b linked to life on Earth. The James Webb Space Telescope's future results show a ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

A Chinese spacecraft on a mission to collect and return samples of a near-Earth asteroid beamed back its first image of its ...

Ninety percent of the world's population could glimpse asteroid Apophis during its once-in-a-millennium close approach to ...