Earth, HD 20794 d, orbiting a nearby sun-like star, offering a promising lead in the search for life beyond our planet.

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

Asteroids are more than just space rocks—they come in many shapes, sizes, and compositions, with some even defying scientific ...

Southwest Research Institute (SwRI) scientists are studying Saturn's moon Titan to assess its tidal dissipation rate, the ...

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 popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

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

Astronomers at NASA have caught a glimpse of a star system whipping through space at an unprecedented speed. While the system ...

Astronomers may have discovered the fastest-moving planet system ever found, moving through our galaxy at speeds of at least ...