Astronomers believe they have discovered a fast-moving comet that Saturn sent careening out of our solar system at a speed far eclipsing humanity's fastest fighter jets. Though the planetary encounter ...

Saturn has pulled decisively ahead in the solar system’s quiet “moon race,” with astronomers now tallying a staggering 274 natural satellites circling the ringed giant. The new count, driven by the ...

A team of international astronomers reports in the Feb. 15 issue of Science the discovery of a solar system nearly 5,000 light years away with scaled-down versions of Jupiter and Saturn. Their ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

With the discovery of several more moons around the gas giant, Jupiter has narrowly beat out Saturn as the moon king. For now, at least. Reading time 2 minutes Jupiter is a superstar in our solar ...

In brief: Saturn's rings are one of the most iconic formations in our solar system, but researchers have never been sure how or when they formed. A new simulation indicates they are far younger than ...

Two faraway worlds in the solar system are about to appear rather close to each other in the night sky on Monday. The first planet from the sun, Mercury, and Saturn, the second of the gas giants in ...

Five worlds in the solar system have active volcanoes (those that are currently erupting or have erupted in human history): Earth, Jupiter’s moons Io and Europa, Neptune’s moon Triton, and Saturn’s ...

Saturn's moon, Iapetus, imaged by NASA's Cassini spacecraft in September 2007. (Credit: NASA/JPL-Caltech/Space Science Institute) We recently explored Saturn’s moon, Pan, and its unique, food-like ...