Baltic Sentry mission taps ships, planes and drones to police one of the world’s busiest waterways.

Here’s a look at the International Space Station (ISS), a station operated by a partnership of five space agencies from 15 countries. Information on ISS crews and expeditions can be found here.

Video footage emerged showing an apparently recent close encounter between U.S. and Russian forces in the Pacific Ocean. The ...

In a surprising development that signals a potential thaw in US-Russia relations, a top aide to Russian President Vladimir ...

Here's a look at some others who found themselves stuck in space — by choice or not — along with some cool spaceflight ...

The Science Museum in London is closing its almost 40-year-old 'Exploring Space' gallery to establish a new 'Space' gallery ...

Freshly returned veteran astronauts are moving up in the NASA record books. How much they’re paid to do it may surprise you.

As astronauts Butch Wilmore and Sunita Williams return to Earth this week after being stranded at the ISS for 9 months, ...

NASA astronauts Suni Williams and Butch Wilmore have returned safely to Earth after delays kept them in space for 9 months.

A SpaceX capsule carrying a fresh crew to the space station launched Friday, setting the stage for the Starliner astronauts to finally come home.

The pair of Boeing Starliner astronauts left behind on the International Space Station are finally on their way back to Earth after a planned eight-day trip turned into more than 9 1/2 months in space ...

Butch Wilmore and Suni Williams, the two NASA astronauts whose one-week stay on the International Space Station grew into a ...