Saturn’s rings, imaged here by NASA’s Cassini orbiter, are one of the solar system’s most reliably spectacular sights. But ...

A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the ...

But later – hundreds of millions of years in the future – a permanent, virtually ringless Saturn will become real, thanks to another process called ring rain in which gravity pulls the rings apart and ...

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

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

Move over Saturn! Scientists have found a ring around an unassuming mini-planet in our Solar System to debunk the theory that only giant planets can be so adorned. The planet, dubbed Haumea ...

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

In January, stargazers will be able to see four bright planets, the close dance of Venus and Saturn, Mars at opposition, and ...

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

but they believe the rings could be as old as the planet, which is around 4.5 billion years old. The assumption that Saturn's rings were relatively young stemmed from the lack of dust that would ...

From January to March, the night sky will host a spectacular parade of planets featuring Venus, Mars, Jupiter, Saturn, Uranus ...