Spitzer Observes Gas Emission From Comet ISON

[Waspie_Dwarf]

NASA'S Spitzer Observes Gas Emission From Comet ISON

PASADENA, Calif. -- Astronomers using NASA's Spitzer Space Telescope have observed what most likely are strong carbon dioxide emissions from Comet ISON ahead of its anticipated pass through the inner solar system later this year.

Images captured June 13 with Spitzer's Infrared Array Camera indicate carbon dioxide is slowly and steadily "fizzing" away from the so-called "soda-pop comet," along with dust, in a tail about 186,400 miles (300,000 kilometers) long..

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