martedì 26 novembre 2013

NYT Science: Comet Nears Sun, Offering Planetary Clues

Comet Nears Sun, Offering Planetary Clues
By KENNETH CHANG

A comet that spent the first 4.5 billion years of its existence in the farthest reaches of the solar system will almost graze the furnace of the sun on Thanksgiving.

Published: November 27, 2013 at 5:00AM

via NYT Science http://www.nytimes.com/2013/11/27/us/comet-nears-sun-offering-planetary-clues.html