Tracking the rotation speed of solid planets, like the Earth and Mars, is a relatively simple task: Just measure the time it takes for a surface feature to roll into view again. But giant gas planets ...

Just about everyone’s favorite planet is back in our evening sky once again. The ringed beauty Saturn reaches its “opposition” point in late August (officially on Aug. 27) when it appears as a fairly ...

rotation. Here’s the puzzle: That is about 6 minutes, or one percent, longer than the radio rotational period measured by the Voyager 1 and Voyager 2 spacecraft, which flew by Saturn in 1980 and 1981.

WASHINGTON (Reuters) - Call it the case of the missing moon. Scientists using data obtained by NASA's Cassini spacecraft and computer simulations said on Thursday the destruction of a large moon that ...

The rotation rates of giant planets (Jupiter, Saturn, Uranus, Neptune) are significantly faster than those of terrestrial planets (Mercury, Venus, Earth, Mars). Determining the rotation rates of giant ...

Scientists are one step closer to understanding a mystery of the Milky Way. In 2007, data showed that a young star about 400 light years away from our solar system was blinking. It was being covered, ...