The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Swarms of satellites launched by SpaceX and other companies are disrupting astronomical observations. Here's how scientists ...

William Shatner, who became the oldest person to travel to space at age 90, is offering encouragement and practical advice to Gayle King and the all-female crew launching April 14.

Blue Origin set a date for its space flight featuring Katy Perry and Gayle King, and released a patch to symbolize the ride, ...

Lane Bess, a tech investor and CEO, has now gone to space twice on Jeff Bezos' Blue Origin. Each time he said it reminded him ...

While airlines do all they can to make flying safe, there is one threat to aviation that even they can't do much about: space ...

Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...

Elon Musk and Donald Trump have announced ambitious plans to send a mission to Mars in 2026 and 2028. It’s not going to ...

SpaceX launched the Spherex observatory from California, putting it on course to fly over Earth’s poles ... or outer atmosphere, and the resulting solar wind. The evening launch was delayed two weeks ...

SpaceX is scheduled to launch a Falcon 9 rocket from Cape Canaveral Space Force Station between 2:09 p.m. and 6:40 p.m. EDT Tuesday. NASA astronauts Butch Wilmore and Suni Williams are scheduled ...