In a new study featured by New Scientist, researchers propose that Mars might have once had a much larger moon than it does ...

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

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.

Scientists reveal why time moves faster on Mars than on Earth, and how this affects future space communication and navigation ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

The first global atlas of Martian watersheds reveals 16 huge ancient river systems that once shaped Mars and may hold clues ...

Measuring the time discrepancy between Earth and Mars will help make future navigation and communication systems on the Red ...

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

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

Clocks tick faster on Mars than they do on Earth, in part because Mars experiences less gravitational pull from the Sun. Now scientists have calculated just how much faster -- 477 microseconds, on ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind recorded by NASA's Perseverance rover.

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