History of space here on earth

1,000 or 66,000,000 years ago, it’s amazing how we are able to reconstruct what has happened in space with clues here on earth.  According to one article, “Space Explosion to Blame for Tree Ring Mystery, Astronomers Say“by Clara Moskowitz at Space.com, we see evidence in tree rings about an  gamma-ray burst that happened somewhere between 3,000 and 12,000 light-years away from earth.

“While just recently we’ve found more clues to support one of the possible ideas as to how dinosaurs became extinct over 66,000,000years ago in the article “Asteroid Impact That Killed the Dinosaurs: New Evidence” by Charles Choi at LiveScience.



Green Librarian

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