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John is a 49 year old married guy from Athens, Greece, Greece.
Likes 2,616 pages, 25 videos, 102 photos191 fans • Received 86 reviews
Member since Dec 02, 2007
I'm here for web surfing. I like serious, thought provoking & intellectually rewarding pages on science, politics, society, humanities & the arts.

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Looking Down a Barrel of Gas at a Doomed Star
Liked it May 9, 9:16am 6 reviews http://www.spacetelescope.org/images/...
The NASA/ESA Hubble Space Telescope has captured the sharpest view yet of the most famous of all planetary nebulae: the Ring Nebula (M57). In this October 1998 image, the telescope has looked down a barrel of gas cast off by a dying star thousands of years ago. This photo reveals elongated dark clumps of material embedded in the gas at the edge of the nebula; the dying central star floating in a blue haze of hot gas. The nebula is about a light-year in diameter and is located some 2, 000 light-years from Earth in the direction of the constellation Lyra.