The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

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

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

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

AN ALIEN planet with traces of water and “complex weather patterns like Earth” might be seen like a good contender for a ...

Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

Researchers have created an improved traffic light system for predicting geomagnetic storms. They are now testing how well ...

Reintroducing Hawaii's sacred crow, how desert ants find their way, pterosaurs paddle-like tails, and how gophers rebuild ...

Astronomers discovered supersonic winds on a giant gas planet located over 500 light-years from Earth. In a study released ...

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...