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 ...

Now's a great time to invest in such a scope, too. Mars and Jupiter appear close ... If you'd prefer to gaze beyond our solar system, we've selected the best telescopes for deep space.

It's the largest drill NASA has ever sent to space, and it will dig deeper into Mars than ever before. The mission? Uncover clues to one of the most outstanding mysteries in our solar system.

The meticulously planned loop around Mars will allow the spacecraft to harness the planet's gravity without expending additional propellant. "It's like a game of billiards around the solar system ...

All seven planets are going to line up in the night sky on Friday in a rare planetary parade that will not be repeated for another 15 years. The celestial display will see Mars, Jupiter, Uranus, Venus ...

The sun is currently at solar maximum. This means that the ... Part of MAVEN's capabilities includes an "early warning system that lets other Mars spacecraft teams know when radiation levels ...

Four of them — Venus, Mars ... a different scope of cosmic events, including a lunar eclipse this coming March, meteor showers, and a new comet that will enter the solar system for the first ...

"The scope of the science has ... to be at least 3.5 billion years old. "Mars is very well-preserved in terms of the early history of our solar system, so being able to look at rocks that are ...