The U.K. Space Agency has decided to continue funding a project by Rolls-Royce to create a small nuclear-powered reactor that could serve as a long-term energy source for lunar bases.

Rocket Lab plans to launch two satellites early Wednesday morning (March 22), on a mission that includes a booster recovery at sea. Watch it live here.

On March 21, 1965, NASA launched the Ranger 9 spacecraft on a mission to crash into a lunar crater.

A new method could allow astronomers to assess exoplanets' likely subsurface water stores, aiding the search for worlds capable of supporting life as we know it.

Even quiet red dwarfs are prone to extreme outbursts that put our sun to shame, with significant implications on the search for alien life.

A newfound, highly adaptable bacterium shows the kind of diverse life to look for on Europa or Enceladus, astronomers say.

Jupiter will meet up with the moon before joining Mercury in late March, after which it will disappear in the glare of the sun until it reappears in May.

The dark skies of the new moon will offer skywatchers the chance to spot Ceres tonight (March 21), as the dwarf planet reaches opposition.

Buying Guide The best telescopes for seeing stars, galaxies, nebulas, planets and more — featuring tabletop, astrophotography-friendly and computerized models.

Variety interviewed William Shatner for his new life-spanning documentary 'You Can Call Me Bill.'

On this episode of This Week in Space, Rod Pyle and Tariq Malik talk about seeing Earth from space and the Overview Effect with the term's creator Frank White.