'They want this regime gone': Iran expert tells CNN what's next for Iran's protest movement after supreme leader's death ...

This image is one of a series of still photos documenting the process to release the SpaceX Dragon-2 spacecraft from the International Space Station on March 26, 2013. This image is one of a series of ...

When you ask Chris Hadfield how he defines leadership, he goes back to his cadet days. The astronaut wasn’t old enough to join pilot school, so he enrolled in a junior leadership course instead. It ...

Either a space rock or man-made debris punctured a small hole in the International Space Station's solar array as photographed yesterday by astronaut Chris Hadfield. Credit: NASA "Bullet hole - a ...

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. You might know Chris Hadfield as the International Space Station commander who famously sang David Bowie’s “Space Oddity” ...

Canadian astronaut and global icon Chris Hadfield has a new gig that will keep him much closer to home — he’s fronting a new feature documentary, It Started in Waterloo: ...

Former Nasa astronaut Chris Hadfield and European Space Agency (ESA) astronaut Matthias Maurer recently took part in critical testing of Axiom Space's new lunar spacesuit, the AxEMU, in conjunction ...