Science As the asteroids rained down on Earth, life persisted

During the first 500 million years after the formation of the Earth, meteors pummeled rained down from the sky, transforming the surface into molten rock. Yet the planet may have been more hospitable than previously thought.

By , Contributor

Simone Marchi

Asteroids and comets that repeatedly smashed into the early Earth covered the planet's surface with molten rock during its earliest days, but still may have left oases of water that could have supported the evolution of life, scientists say.