Test out your knowledge of these famous firsts in skywatching and astrophotography, from the first photos of Earth and the ...

Scientist celebrated today for changing our view of the universe. Aug. 25, 2009 — -- Who invented the telescope? Not Galileo. Who first pointed it at the heavens? Again, it wasn't Galileo. So ...

Telescopes have come a long way since the first one was invented in 1608. So what's the most powerful telescope operating today, and how far can it see?