Sweden mysterious meteorite: New class of space rock may point to an ancient asteroid collision.

How an Asteroid Collision Between Mars and Jupiter Changed Life on Earth (Video)

How an Asteroid Collision Between Mars and Jupiter Changed Life on Earth (Video)

Slate in motion.
July 3 2014 1:30 PM

A New Kind of Space Rock in Sweden

It could help explain an ancient boom of life on Earth.

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A strange meteorite has been discovered in Sweden, and it might be partly responsible for an explosion of life on Earth nearly 500 million years ago.