New Date For ‘Late Heavy Bombardment’ May Change Life’s Timeline on Earth

Posted on Categories Discover Magazine

Asteroids may have stopped pummeling Earth some 600 million years earlier than scientists thought, giving life that much more time to evolve. (Credit: NASA/JPL-Caltech)

The solar system once experienced a meteor shower of epic proportions: Asteroids whizzed around the inner planets, crashing down in a rain of fire that left their surfaces scarred for billions of years. Astronomers typically call this period the Late Heavy Bombardment.

But exactly when that fiery assault happened has been

Leave a Reply