The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

While planets circle the sun in what's called and heliocentric orbit, they rarely fall together in what appears to the human ...

A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Six planets will be visible to the naked eye and eight can be seen if you have a telescope or binoculars. The celestial event is called a planetary parade. The planetary parade is a celestial ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

If you needed a sign from the cosmos, the planets are in fact aligning for you this evening. ValleyCentral spoke to Christian ...