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reply to post by cheesy
ison is gone
Scientists baffled by new picures of Comet ISON
After a multimillion-year plunge from the frozen fringes of the solar system, Comet ISON may have broken apart and evaporated in the fierce heat and crushing gravity of the sun before or during a close flyby Thursday, presumably scotching long-held hopes for a dramatic sky show on Earth over the next few weeks.
Or maybe not.
Well after many casual observers had given up on the comet's survival, updated pictures from the Solar and Heliospheric Observatory spacecraft -- SOHO -- showed what appeared to be a long trail of dust extending away from the sun along ISON's trajectory, brightening sharply toward its tip.
"My best guess right now, and it's really only an educated guess, is that there is something left, probably smaller fragments, because it still doesn't look like there's a nuclear condensation. Inbound, the leading edge was brighter. It doesn't look like that. It just looks to me like there are some smaller fragments that may just actually be disintegrating. They just took longer to do it."
As comet ISON plunged towards to the Sun, it began to fall apart, losing not giant fragments but at least a lot of reasonably sized chunks. There's evidence of very large dust in the form of that long thin tail we saw in the LASCO C2 images. Then, as ISON plunged through the corona, it continued to fall apart and vaporize, and lost its coma and tail completely just like Lovejoy did in 2011. (We have our theories as to why it didn't show up in the SDO images but that's not our story to tell - the SDO team will do that.) Then, what emerged from the Sun was a small but perhaps somewhat coherent nucleus, that has resumed emitting dust and gas for at least the time being. In essence, the tail is growing back, as Lovejoy's did.
Looks even more brighter now.
Here you go Phage
edit on 28-11-2013 by HoboHumpinSloboBabe because: (no reason given)
reply to post by Tucket
Check out the degree of freedom. Absolute zero is attained when molecules stop moving. Also the other poster has not explained yet how space is not a vacuum.