On May 27, 2009, three astronauts launched to the International Space Station to complete the crew of Expedition 20.

China plans to expand its space station to six modules from three in coming years, offering astronauts from other nations an alternative platform for near-Earth missions as the NASA-led ...

The changes align with a desire that was reflected in the Trump administration's "skinny budget" proposal for NASA, released ...

The first spacewalk was conducted in 1965, by Russian cosmonaut Alexey Leonov. Nearly 20 years later, cosmonaut Svetlana Savitskaya became the first woman to walk in space during a solo outing in 1984 ...

When complete, the T-shaped station will be more than one-fourth the size of the 20-year-old International Space Station in habitable volume. Two of Tiangong's three modules have been sent up ...

Gatens says the structure of the space station – which is the size of a football field – is what can't be upgraded and replaced. And something of that size is costly for NASA to maintain.

At only one-third the size of the ISS, Tiangong doesn't have the same research infrastructure, but this Chinese space station has expansions planned for 2026 that will see a space telescope module ...

[Related: Watch a space station habitat prototype pop like a water ... Once inflated, a single full-size LIFE module is roughly equivalent to one-third the volume of the ISS.

On the evening of Oct. 24, NASA announced a maneuver to give the International Space Station "an extra measure of distance" from a fragment of debris (its size wasn't indicated) passing just miles ...

The size of the neighborhood in low Earth orbit has now officially doubled. On October 31, China launched the final piece of its new Tiangong space station, completing its construction.

Dubbed Haven-1, the space station is much more modern and spacious than the ISS, with queen-size beds, a state-of-the-art gym, and maple wood interiors. Haven-1 is the brainchild of US-based space ...