It will be several years before any of these new commercial space stations circle the Earth at around 17,500 miles per hour ...

NASA has been a leader in space exploration, and its work with international partnerson the ISS has been groundbreaking. However, as 2030 approaches, the ISS will retire, making way for commercial ...

NASA has modified its ISS resupply contract with Sierra Space, which builds the robotic Dream Chaser space plane.

For a quarter of a century, humans have continuously occupied the International Space Station. Here's a look at how far we've ...