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

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

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

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

"We did the simplest thing that could be done — we just mapped them and pieced them together." ...

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

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

NASA is racing to understand why one of its most seasoned Mars orbiters suddenly fell silent, cutting off a critical scientific and communications lifeline around the Red Planet. The Mars Atmosphere ...

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

Mining on Mars sounds like sci-fi, but the logic is brutal and simple: Earth is running out of easy resources, and digging ...

The interstellar comet 3I/ATLAS is racing away from the sun. Hubble and JWST track the object's strange composition: high CO2 ...