Galaxy M87 is an enormous collection of heaven...  ...nescu also of the Kavli Institute. Chandra X-Ray Observatory has much more info on this and other astronomical...

There were strange things showing up on the telesc...  ...telescopic images at the Smithsonian’s Whipple Observatory in Arizona, but astronomers knew they weren’t U...  ...petrator had been leaving dusty footprints on the telescope ’s mirrors for a year, eventually marring five e...  ...ensive mirrors. Ove...