Scientists discover ancient space rock shedding light on evolution of life

Q.  Scientists have discovered an ancient space rock that can reveal more about life on earth. What is this meteorite called?
- Published on 17 Jun 16

a. Ost 55
b. Ost 65
c. Ost 75
d. Ost 85

ANSWER: Ost 65
 
The meteorite discovered in Sweden’s fossil meteorite packed Thorsberg quarry belongs to a kind never before found on earth
  • New meteorite called Ost 65, is from a missing partner in a massive asteroid collision 470 million years back
  • The collision led to debris falling on Earth over a million years and influenced great diversification of life in the Ordovician period lasting 45 million years commencing 488.3 million and ending 443.7 million years ago
  • An object involved in the collision is the source of L-chondrites, the most common type of meteorite but the identity of the object it hit remains elusive

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