— -- As humans, we're limited by what we can see with the naked eye. While we're biologically suited to looking at things up close, our eyes can't zoom in to take a look at far-away objects. But ...

Broadly speaking, scientists use telescopes to see things that are very far away from Earth. As targets get smaller or farther from Earth, it takes a larger effective aperture to get a clear picture.

The past quarter of a century in astronomy has been dominated by large telescopes — but they are about to be usurped by some even larger ones. When you purchase through links on our site, we may earn ...

"It's amazing that after 35 years, Hubble still holds a unique capability as a top workhorse for science discoveries and publications." This Thursday (April 24), the Hubble Space Telescope celebrates ...

When you look at the night sky, do you ever wonder what's going on out there? On a clear night with a dark sky, if moonlight doesn't wash it out, sometimes you can see the arc of the Milky Way. The ...