Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

This image of Earth, one of 77 composite photographs appearing in Otherworlds: Visions of our Solar System, gives an almost complete view of the planet taken a week before the northern hemisphere's ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Computer simulations suggest that there is an undiscovered Earth-like ...

One possibility is that a rogue planet, about 1–2 times Earth’s mass, influenced their paths early in the solar system's ...

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 ...