Asteroid strikes 'increase threefold over last 300m years'

Planet and moon have been hit by more asteroids in the past 290m years than at any time in previous billion

The rate at which asteroids are slamming into Earth has nearly tripled since the dinosaurs first roamed, according to a survey of the scars left behind.

Researchers worked out the rate of asteroid strikes on the moon and the Earth and found that in the past 290m years the number of collisions had increased dramatically.

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Source: theguardian