Earth's orbit is getting crowded with junk. And that's becoming a major problem. Starting with Sputnik I in 1957, humanity has sent up nearly 17,000 satellites. Around 11,500 of them are still there, ...

Lower gravity. Higher radiation. No ER access. These are just a few of the challenges that humans face in outer space. Emily and Regina talk to a NASA astronaut (and astronaut scientist) about the ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Wayne N White Jr consults with One Space Technologies ...

A version of this article first appeared in the CNBC Property Play newsletter with Diana Olick. Property Play covers new and evolving opportunities for the real estate investor, from individuals to ...

Sci-fi movies can bend the rules however they please, but they're often more compelling when they stick to the facts and present more accurate depictions of outer space. Many of the best space ...