I saw something on Discovery or National Geographic about a few days back.... The scary part is that they speculate on the size of that killer rock.
Scientists believe now that its size was much smaller than expected. Meaning smaller asteroid/comet that was previously though trivial are now possible humanity killer!
I saw something on Discovery or National Geographic about a few days back.... The scary part is that they speculate on the size of that killer rock. Scientists believe now that its size was much smaller than expected. Meaning smaller asteroid/comet that was previously though trivial are now possible humanity killer!
The Earth is about 4.54 billion years old! Please google your statement or go back to school!