K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

It weighs 3 1/2 tons. Clipper is undertaking the first targeted exploration of an ocean world beyond our planet. Even if there is no life on Europa, this mission is crucial in the search for alien ...

Scientists have spotted a molecule linked to life in the atmosphere of K2-18b using the James Webb Telescope. Here is a look ...

How do the water vapor plumes on Jupiter’s icy moon, Europa, contribute to the interaction between the moon’s surface and subsurface environmen | Space ...

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being ...

The European Space Agency (ESA) just released some new snapshots from its Mars Express orbiter that detail the dynamic ...

The goal is to reach Europa, the smallest of the planet's four Galilean moons, in April 2030, as part of the first mission specifically designed to study the under 2,000-mile-across space rock.

A distant planet's atmosphere shows signs of molecules that on Earth are associated only with biological activity, a possible signal of life on what is suspected to be a watery world, according to a ...

The spacecraft will fly by Mars, then back by Earth, using the gravity of each planet to increase its momentum. These so-called ‘gravity assists’ will provide Europa Clipper with the velocity ...