ARLA/CLUSTER: Cometa Lovejoy - É absolutamente surpreendente como sobreviveu

[João Costa > CT1FBF]

* Comet Lovejoy Plunges into the Sun and Survives*

*Dec. 16, 2011:* This morning, an armada of spacecraft witnessed something
that many experts thought impossible.  Comet Lovejoy flew through the hot
atmosphere of the sun and emerged intact.

"It's absolutely astounding," says Karl Battams of the Naval Research Lab
in Washington DC.  "I did not think the comet's icy core was big enough to
survive plunging through the several million degree solar corona for close
to an hour, but Comet Lovejoy is still with us."

The comet's close encounter was recorded by at least five spacecraft:
NASA's Solar Dynamics Observatory and twin STEREO probes, Europe's Proba2
microsatellite, and the ESA/NASA Solar and Heliospheric Observatory.  The
most dramatic footage so far comes from SDO, which saw the comet go in (
movie<http://science.nasa.gov/media/medialibrary/2011/12/16/comet_whoosh.m4v>)
and then come back out again
(movie<http://science.nasa.gov/media/medialibrary/2011/12/16/lovejoyemerges.m4v>).


Mais em:
http://science.nasa.gov/science-news/science-at-nasa/2011/16dec_cometlovejoy/

Fonte: NASA Science
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