Tuesday, August 28, 2012

Thursday, August 9, 2012

Sloan Survey 3: 400,000 Galaxies Mapped in 3D



Each speck you see in this animation is a galaxy, and each contains  several hundred billion stars. Almost all the stars are thought to have planetary systems.  These are actual photographs of these  galaxies and their relative positions, drawn from the Sloan Digital Sky Survey 3. But this is a small slice of the visible universe, with only 400,000 galaxies mapped. There are thought to be at least a hundred billion galaxies in the visible universe.

Friday, August 3, 2012

Space Gopher at the Cosmodrome


A gopher lives under the rocket rails at the Baikonur Cosmodrome in Kazakstan. Russian Space Agency technicians set up a camera to observe him. (See an 8 minute version, different sound track)