SEE ALSO: Seven Earth-sized planets orbit an alien star only 40 light-years ... a number of artists have already created their own art celebrating the distant worlds not too terribly far from ...

More than 7,000 exoplanets - ones that orbit a ... during the planet’s revolution around the star." The research team ...

The first astronauts to enter a polar orbit chose the obvious animal to serve as their zero-g indicator: a plush polar bear.

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

Mercury has the shortest and fastest orbit around the Sun and experiences dramatic temperature changes as it rotates. It is a world of extremes. Explore facts about our solar system's fastest planet.