In this video segment adapted from NOVA, learn how our solar system formed from a cloud of gas and dust more than 4.5 billion years ago. Watch video that features real satellite imagery as well as simulations to illustrate how small bodies in the early solar system collided with each other to form larger objects and early planets (protoplanets). See how computer simulations have shown that over tens of millions of years, collisions between hundreds of protoplanets formed the rocky inner planets we see today.
This media asset was adapted from NOVA: "Finding Life Beyond Earth."
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