By Joey Roulette, Ross Kerber and Echo Wang WASHINGTON, Dec 12 (Reuters) - Investors eyeing SpaceX's potential blockbuster ...

Even worse, the orbit of Mars is elliptical (think of a slight oval rather than a perfect circle), which means that sometimes ...

Investors eyeing SpaceX's potential blockbuster IPO may need to brace themselves as CEO Elon Musk balances his risky quest to ...

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly ...

For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...

Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...

As humanity prepares to take its first steps on Mars, a comprehensive report released by the National Academies of Sciences, ...

Maven, an acronym for Mars Atmosphere and Volatile Evolution, abruptly stopped communicating with ground stations on Dec. 6.

Dust devils on Mars form when air near the warm surface heats up and rises through cooler surrounding air, causing nearby air ...

One of NASA’s workhorse spacecraft in orbit around Mars has fallen silent, leaving agency personnel scrambling to ...

NASA has lost contact with MAVEN, a spacecraft that has been orbiting Mars for more than 11 years and one of only three ...

NASA has lost contact with one its three spacecraft orbiting Mars, the agency announced Tuesday. Meanwhile, a second Mars ...