Science

A Journey To The Oort Cloud, Where Comets Are Born

NPR | Jan. 7, 2013 9:23 a.m.

The comet ISON, discovered by two amateur astronomers last year, will zoom past the Earth next fall. But where did it come from? Astronomer Andrew Fraknoi says a passing star could have flung the comet our way from the Oort Cloud, a distant realm of ice chunks at the outer limits of the solar system.

Comments

blog comments powered by Disqus
Thanks to our Sponsors:
become a sponsor
Thanks to our Sponsors
become a sponsor