The voyage will mark Cassidy’s third trip into space, having logged a total of 182 days in orbit during a 2009 space shuttle flight and a 2013 stay aboard the ISS.

As India eagerly waits for its giant cosmic leap, the first visuals from inside the SpaceX spacecraft are flashing on TV ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

Get the latest news headlines and top stories from NBCNews.com. Find videos and news articles on the latest stories in the US.

The latest news and headlines from Yahoo News. Get breaking news stories and in-depth coverage with videos and photos.