Tiny Galaxies That Speak Volumes Our Milky Way is surrounded by dozens of smaller “satellite” galaxies. These aren’t mere ...

Extragalactic globular clusters millions of light-years away are hiding in your astroimages. Here’s how to find them.

What lies beyond the Milky Way — from the Andromeda Galaxy to the Laniakea Supercluster. A tour of the universe's structure, ...

In 1986, I got invited to show a film at the Rio Film Festival. It was my first time in Brazil, and though I was familiar ...

As Saturn and Mars are in opposition, Mars will enter a star cluster and be visible in the daytime sky, while Earth will pass ...

The latest physics "death sentence" is terrifyingWhile scrolling through Twitter before bed, I saw a news story saying, "The lifespan of the universe might be significantly shorter than previously ...

The world isn't what it seems. Here's how science has exposed the fallacies and misconceptions of Earth and the heavens ...

The fact that the Sun (a star) is at the center of the solar system was just a coincidence | The Sun can also wobbleThe Sun ...

Colorado Amendment 87: Establish graduated income tax and dedicate new revenue to education, healthcare and childcare ...

Learn how to shoot astrophotography with a phone: manual focus, a steady tripod, frame stacking, and editing steps for sharp, ...

Earth feels permanent only because human lives are so short. On the scale of the cosmos, however, our planet is passing ...

In our own solar system, all eight planets orbit our Sun in a nice, orderly fashion. None are more than 7° or so out of ...