The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

You might want to keep your eyes on the skies through next month: Six planets will align in January and February.

Saturn may be difficult to see since it will be near the sun, according to StarWalk. It's not especially remarkable for a few ...

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.

These rocky bits eventually coalesced to form the terrestrial planets. However, at a distance of around 4 astronomical units from the Sun (AU; 1 AU is the average ... in the outer solar system. This ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study.

The planets will appear to line up — but no more than usual. The planets in our solar system orbit the sun in more or less ... and Saturn appear to close the distance between them in the night ...

These planets can be seen with the naked eye, shining brighter than any other stars in the night sky. Uranus and Neptune, due to their distance and ... disk and orbit the Sun in a plane called ...

These rocky bits eventually coalesced to form the terrestrial planets. However, at a distance of around 4 astronomical units from the Sun (AU ... This first-order model of planetary growth ...