Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

The meteor fragments returned by OSIRIS-REx shed light on the entwined history of water and the chemical ingredients of life in the solar system.

In February, six planets will align in the night sky — Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars — and be mostly visible to the naked eye. We find out how to see and more about this ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

NASA's findings provide the strongest evidence yet that asteroids may have planted the seeds of life on Earth and that these ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

A planet parade will be happening high above the earth. But there is a debate on whether it is as special as you may be ...

The Virtual Telescope Project will livestream telescope views of the "planetary parade" on Saturday (Jan. 25), featuring a ...

NASA's Voyager 2 spacecraft flew by Uranus. This was the first time any spacecraft had ever visited Uranus. Its twin ...