Unique fragment from Earth's formation returns after billions of years in cold storage

Friday, April 29, 2016 - 13:11 in Astronomy & Space

In a paper to be published today in the journal Science Advances, lead author Karen Meech of the University of Hawai`i's Institute for Astronomy and her colleagues conclude that C/2014 S3 (PANSTARRS) formed in the inner Solar System at the same time as the Earth itself, but was ejected at a very early stage.

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