At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

Today, science can narrow down potential oil reserves with surprising accuracy — especially when it comes to shale oil, found ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

Many astronomical events, such as meteor showers, run by calendrical timings as well. But our moon and the other planets move ...

Watch breathtaking captures straight from the International Space Station as Japanese astronaut Kimiya Yui shares a glowing aurora over Japan and the dramatic New Year sunrise. His orbital views of ...

Just days into the New Year, on January 6, NASA will begin spacewalks outside the International Space Station to prepare for ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how the outer solar system formed and evolved.

With outstanding customization options, an epic sensor, wireless connectivity, and stunningly lightweight, the Pathfinder is exemplary. Really, it's only mildly let down by its price and the fact that ...

Blue Origin scrubbed Sunday’s launch attempt due to poor weather, a cruise ship in restricted waters near the launch site, and ground system issues. The company says the next available launch ...

If you watch sci-fi movies, you’d think that flying a spaceship is just like driving a slightly more complicated car (or a Winnebago in Spaceballs). And George Lucas gave us those galactic battles ...

Have you ever wondered how long it takes for each planet to orbit the Sun? From Mercury’s blazing 88-day year to Neptune’s astonishing 165-year journey, every planet moves at a completely different ...