What are the serious health challenges the NASA astronaut is facing while she is stuck at the ISS with Butch Wilmore.

The aviation museum in Tucson has new planes, some of which you can go in. Here's how long it takes to go through the museum and how to get tickets.

There is only one way to experience lunar gravity while still on Earth, or rather a few thousand feet above its surface: on a parabolic flight. In this exclusive mini-documentary, Space.com reporter ...

Credit: Blue Origin Here's a round-up of space missions and cosmic events just around the bend. Bookmark this calendar and look for updates from Mashable throughout the year. SEE ALSO: NASA leader ...