Miriam Kramer

How is gold formed? Scientists from the Harvard-Smithsonian Center for Astrophysics (CfA) will hold a news conference announcing new findings exploring the origin of the precious element on Earth.

Finding life on Mars isn't easy. Scientists still haven't been able to detect a definitive sign that either single cellular or multicellular life once roamed the Red Planet.

A never-before-seen moon has been spotted in orbit around Neptune. A scientist using NASA and the European Space Agency's Hubble Space Telescope found the tiny moon — called S/2004 N 1 — on July 1.

The new science fiction movie "Europa Report" is billed by some admirers as one of the most accurate depictions of human spaceflight ever put on film: That realism is no accident.

Astronauts get to celebrate the Fourth of July too.

Extreme volcanism may be responsible for Mercury's artificially young surface.

Pluto's two smallest moons are now named Kerberos and Styx.

Some scientists think a massive solar storm could knock out the power grid for years.

Here's everything worth looking up for in the month of July.

Here's where to go to get your space shuttle fix this summer.

3D printing could help the asteroid-mining industry get off the ground.

Ancient Native Americans in the southeastern United States used art to reveal a multitiered universe with a lower, middle and upper world.

Kirobo is cleared for flight and ready to get chatty on the International Space Station.

Scientists have found the 10,000th near-Earth object ever recorded.

The two 'mini-Neptune' alien planets 3,300 light-years from Earth could be the first of many more, scientists say.

A permanent moon base manned by astronauts is a staple of science fiction. But how would it work in reality?

Hear what Rainn Wilson has to say about space mining.

There are at least six planets orbiting the nearby star Gliese 667C, scientists say.

What would it take to make a moon base? See photos of how it might work.