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

Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

NASA discovers something on Neptune and Uranus: "There are more than 5000" The ice giants of the solar system have long been ...

Six planets are still aligned in London skies tonight (Sunday, January 26) and will remain so until about mid-February. So if ...

Beautiful photos of the six planets aligned in the night sky have emerged online. Mars, Jupiter, Uranus, Neptune, Venus and ...

In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) ...

Planet Nine", dubbed, has fascinated scientists for its ability to account for "anomalous" motions of objects located faraway ...

From west to east, Saturn, Venus, Neptune, Uranus, Jupiter and Mars will make an arc across Wyoming’s night sky in a parade ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Stargazers who haven't had a chance to check out this month's planet parade will want to look up soon because there's ...

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