Just 13.8 billion years after the hot Big Bang, we can see 46.1 billion light-years away in all directions. Doesn't that violate something?

Frequently asked questions about the Astronomy feed.

How is a galaxy like a bathtub? Today's authors use quasars to light up the gas around galaxies.

YouTube video by Space Telescope Science Institute

An international team of astronomers has discovered a massive cloud of gas and dust located in a little-known region...

This is a great time of year to look for the Milky Way. All the stars we see at night of course are part of our Milky Way — the huge collection of gas, dust and stars that we live inside.

Here's the second of my three initial posts looking at some of my astrophotograpy from the Celestron Origin smart telescope. Today, its nebu...

The Atacama Large Millimeter/submillimeter Array (ALMA) has uncovered a key piece of the puzzle in how rocky planets, such...