Most people picture a Glacier Bay day as a lazy lap around some ice with a coffee in hand. A slow loop, a few photos, maybe a ...

Although it’s not the long-sought Planet X (aka Planet 9) that’s believed to be orbiting beyond the orbit of Neptune, it ...

NASA's Swift Observatory will burn up this week. And while the agency has a lot of experience losing beloved hardware, it never gets easier.

The universe may not be a collection of mindless, random objects, but a singular, self-processing network” By Frederick ...

The Swift Observatory allowed astronomers to study events that happen quickly in the universe, such as stars exploding.

A Hubble-based census of 37 nearby dwarf galaxies finds they hold on average just 11% of the oxygen their own stars forged, and as little as 4%. Supernova winds ...

Venus's “horned” crescent, the Ghost Nebula, Ganymede obscuring Io, silvery clouds, and the Moon’s colors: NASA's best ...

Astronomers have determined that VVV CL001, a metal-poor globular cluster near the center of the Milky Way, is about 13.4 ...

For anyone who has ever looked at a map and wondered what’s out there in the blank spaces, Cabeza Prieta National Wildlife ...

At the start of the month, Mars is higher in the sky but is heading rapidly downward and passes to the left of Jupiter on ...

When you think of galaxies, you probably imagine them spinning around in a spiral. Our Milky Way galaxy, along with the solar ...

In short, a regular planet has enough gravitational pull to clear out the space around it, whereas dwarf planets do not.