Planetary scientists recently simulated an alternate version of our solar system: one with a super-Earth causing climate ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

But what’s it like on other planets? There are eight planets in our solar system. The closest one to the sun is Mercury, then it’s Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

A Chinese Mars rover may have found evidence of an ancient ocean on the arid Red Planet. According to a new paper in the ...

What is between Mars and Jupiter in our Solar System? Mars in the fourth planets in our Solar System and is 141,640,000 miles (227,940,000 kilometers) from the Sun. The fifth planet in the Solar ...

It's Mars Day! November 28 is celebrated as Red Planet Day, dedicated to honoring Mars, our fascinating planetary neighbour.

"The emerging picture is that early Mars and Earth had something in common – both were wet. It is known from analysis of the ...

Mars may have hosted life billions of years ago, a possibility that has long intrigued scientists. Now, new evidence suggests ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...