The Chandra X-ray Observatory is the world's most powerful X-ray telescope. It has eight-times greater resolution and is able to detect sources more than 20-times fainter than any previous X-ray telescope.
Two new efforts have taken a famous supernova remnant from the static to the dynamic.
Astronomers have clearly seen the effects of dark energy on the most massive collapsed objects in the Universe.
Scientists hunt for evidence of antimatter -- matter's arch nemesis -- left over from the very early Universe.