Scientists have long known that a major ingredient in comets is water ice, but they were unsure whether the ice was contained mainly inside or if it could be found on the surface as well.
A new analysis of data from NASA's Deep Impact mission last year provides the first evidence that water ice can indeed exist on a comet's exterior.
Comets
University of Hawaii astronomer Fabrizio Bernardi came here from Italy to look for potentially dangerous asteroids.
"But, of course, we see other objects -- stars and comets. This time, the first time, I saw a new comet," the postdoctoral researcher said.
Bernardi was looking at images taken with the Canada-France-Hawaii Telescope on Mauna Kea when he noticed an object that was "a bit fuzzy," with a tail estimated at more than 13,000 miles long.
"But, of course, we see other objects -- stars and comets. This time, the first time, I saw a new comet," the postdoctoral researcher said.
Bernardi was looking at images taken with the Canada-France-Hawaii Telescope on Mauna Kea when he noticed an object that was "a bit fuzzy," with a tail estimated at more than 13,000 miles long.
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Quote of the Day
Those who follow the great part of themselves become great men, and those who follow the small part of themselves become small men.
- Mencius
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