View Full Version : Tunnel Vision - Step Into the "Ring"…

2009-Feb-21, 02:30 PM
Who doesn't recognize this awesome image of Messier Object 57 which was taken by the Hubble Space Telescope? The original color image was assembled from three black-and-white photos taken through different color filters with the Hubble's Wide Field Planetary Camera 2. We know the blue filtration isolates emission from very hot helium, which is [...]

More... (http://www.universetoday.com/2009/02/21/tunnel-vision-step-into-the-ring/)