One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

WASHINGTON (Reuters) -Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...