Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

Discover why Earth's farthest distance from the sun coincides with summer heat, then grab your binoculars for a week of ...

Look for them around 10 p.m. local daylight time, roughly one-quarter up in the western sky. In addition to their closeness ...

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

Space travel From Earth to Mars in half the time: This nuclear rocket would be the fastest object ever built. A British propulsion company is aiming to harness nuclear fusion and drastically cut ...

“10 Earth-Mars transfer windows are needed to make Mars self-sustaining, ideally at least 20,” Musk said on Wednesday, pegging the time required to have a settlement on Mars to “1/4 to 1/2 ...

Mars, often called the Red Planet due to its distinctive rusty color from iron oxide on its surface, is Earth’s neighboring ...

But in a study published on August 16 in the journal Science Advances, a team from the University of Alberta calculated that around half of the 10 known Martian meteorite subgroups here on Earth ...

Mars has a rocky surface with the tallest volcano and a deep valley. Photo Credit: NASA Earth’s air has oxygen, while Mars has carbon dioxide, nitrogen, and argon.

The results of a study into thousands of 'slopes' found by NASA on Mars' surface has left scientists surprised. The planet, ...

Mars is smaller than Earth. It has a diameter of roughly 4,222 miles (6,794 km) — about half Earth's diameter, according to the European Space Agency (ESA). The Red Planet is rocky, much like Earth.