Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

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Web Extras

Life's chances

Three other worlds in the solar system appear to have features that would allow life to develop: Mars, Jupiter's icy moon Europa, and Titan. The best bet may not be what you think.
By Bashar Rizk
Published: March 24, 2006
When scientists speculate about the possibility of life on other worlds in our solar system, Mars and Europa top the list. But, despite the cold, Titan should be considered a contender. In fact, finding life on this strange saturnian moon may be more likely than finding it anywhere else.
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