Bestselling author Christian Davenport chronicles the high-stakes space rivalry between Elon Musk’s SpaceX and Jeff Bezos’ ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

"If you are interested in long-term space colonization or lunar bases or Mars bases, nuclear becomes quite quickly your only option," said James Walker.

"There is a timely and critical need to develop predictive tools capable of assessing and optimizing team composition, ...

A stunning new video, made from Mars Express orbiter data, allows you to soar over a gigantic maze on the Red Planet in ...

For the first time in half a century, America stands on the threshold of sending astronauts back to the Moon. Slated for ...

For more than twenty years, the Mars Express orbiter has studied the Red Planet and remains the European Space Agency's (ESA) only operational mission. In that time, it has provided the most complete ...

The first of these was the loss of space shuttle Columbia in February, the second fatal shuttle accident, which signaled that ...

It's not the first time there have been claims of signs of life on Mars, so why are scientists particularly thrilled now?

Flying 250 miles overhead, the international space station can be seen with the naked eye, orbiting the Earth every 90 minutes, usually carrying a crew of six. Now, before construction of the station ...

What if the first Martian rock samples ever deliberately hauled back to Earth landed not in Houston, but in Beijing? That scenario, once far-fetched, is edging closer to reality. The U.S.-led Mars ...