A space instrument built by the University of Colorado Boulder will launch aboard a NASA spacecraft on Sept. 23 to detect and ...

Explore the true scale of the Solar System in this video, which illustrates the relative sizes of the planets and their distances from the Sun.

The cosmic distance ladder could soon have another rung. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In around 5 billion years, the sun will ...

The Interstellar Mapping and Acceleration Probe (IMAP) is being launched later this month to study the outer reaches of the ...

The gravitational influence of dark matter on stellar motions within galaxies, particularly the high velocities of stars in the Milky Way, is the primary evidence for its existence. This influence is ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar system. Now, a team of researchers have taken a completely different approach to ...

When most people imagine the vastness of space, they picture a dark void with plenty of observable objects. Planets, stars, and other galaxies often come to mind when picturing what space actually ...