- Asteroids are smacking Earth twice as often as before NEWS.com.au
- Asteroid strikes 'increase threefold over last 300m years' The Guardian
- Earth May Be in the Middle of a Giant Asteroid Spike, Billion-Year Survey Reveals Live Science
- Scientists find increase in asteroid impacts on ancient Earth by studying the Moon Phys.org
- Asteroid smash-up may have rained down on Earth 290 million years ago New Scientist News
- View full coverage on Google News
