TNRTB Classic: The Benefits of Bombardments

Collisions with large objects from within the solar system have occurred throughout Earth’s history. These impacts result directly from the processes that formed the Sun and planets. Many large collisions (in the first few hundred million years of Earth’s existence) liquefied the top couple of miles of our planet’s surface, sterilizing any life. Yet this era of bombardment actually prepared the way for advanced life by dramatically reducing the material in the solar system that could collide with Earth during the last 550 million years when multicellular life exploded onto the scene. Check out this previous post to see how these bombardments benefited life.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s