These linkups happen when several planets appear to line up in the night sky at once. Such parades are fairly common, ...

From meteor showers to visible nebulas, August is primed to be an action-packed month for stargazers in the United States. ...

With a diameter of 88,846 miles at its equator, Jupiter is the biggest planet in our solar system. It’s eleven times larger ...

Venus and Jupiter, the brightest planets in our solar system, are about to make their closest approach during their August ...

Jupiter, the largest planet orbiting the sun, used to be much bigger and stronger when the solar system was just beginning to take shape, a pair of astronomers say. Two scientists at Caltech and ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact.

People around the world will have a chance this weekend to catch what could be the year’s most stunning view of the largest planet in our solar system. Jupiter on Saturday will shine at its ...

Jupiter, long settled in its position as the fifth planet from our sun, was a rolling stone in its youth. Over the eons, the giant planet roamed toward the center of the solar system and back out ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

Earth’s silvery moon is impressive in many ways, but it doesn’t hold a candle to those of the solar system’s gas giant planets. These moons are worlds unto themselves.