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Originally posted by stereologist
reply to post by daz__
Planets do not have tails.
Boston University astronomers released new images of Mercury that capture both the source regions of and, for the first time, the extraordinary length of the planet's comet-like tail. Earlier research had mapped-out Mercury's sodium gas tail to approximately 40,000 kilometers, but planetary scientists from BU's Center for Space Physics (CSP) have found that the tail can extend more than 2.5 million kilometers, or 1.5 million miles, from the planet.
Like the zodiacal light the gegenschein is sunlight reflected by interplanetary dust. Most of this dust is orbiting the sun in about the ecliptic plane, with a possible concentration of particles at the L2 Earth-Sun Lagrangian point.
Originally posted by smirnoffsky
Originally posted by dotkix
what is this about? a defective camera lens or alien invasion!
stereo-ssc.nascom.nasa.gov...
First thing that came into mind after viewing the image was this old thread about an "alien factory" in the skunk works section.
Here's a link to that thread:
www.abovetopsecret.com...
EDIT: another image
www.abovetopsecret.com...
Just for the record.
[edit on 26-4-2010 by smirnoffsky]
[edit on 26-4-2010 by smirnoffsky]