History: On June 30, 1908, a space rock affected a space of 5 lakh sections of land close to the Tunguska River in Russia. 100 sq km of deodar backwoods were obliterated.
What are space rocks
Space rocks are little bits of stony metal or rock that can go in size from a couple of meters to a kilometer. Most can't be seen from Earth. It is assessed that there are more than one lakh space rocks in the nearby planetary group.
Most well known space rock
The most well known space rock is '1 Ceres' whose distance across is in excess of 952 km. Moreover, there are space rocks '2 Palas' (544 km in breadth) and '4 Vesta' (580 km) in measurement. Space experts found these during the 1800s.
Start of life on earth
Researchers at the University of Washington say that the unlimited water present on Earth additionally came from an uncommon shooting star 'enstatite chondrite'. These shooting stars contained sufficient hydrogen to create multiple times more water than the seas. In excess of 6100 space rocks fall each year. Of these, lone 500 arrive at the Earth's surface, of which just 10 are recognized.
