Earth is on an orderly path around the sun, orbiting in nearly the same plane as our star’s equator. In 2008, however, astronomers began finding worlds in other solar systems that sail far above and ...

The planets of our solar system all orbit the Sun within a few degrees of a flat plane extending out from our star’s equator — its equatorial plane. That makes sense. Our solar system began as a ...

Do galaxies, including our own Milky Way, orbit anything in the universe? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It seems like ...

Strange giant planets known as hot Jupiters, which orbit close to their suns, got kicked onto their peculiar paths by nearby planets and stars, a new study finds. After analyzing the orbits of dozens ...

Pluto's continued existence owes much to the gravity of Jupiter and Neptune. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Pluto is lucky to ...

For the inner four planets in this solar system, each planet orbits the sun three times for every two orbits of the planet immediately to its outside. For the fourth, fifth and sixth planets, they ...