Physical Cosmology

What existed before our solar system?
Answered by Science Channel
  • Science Channel

    Science Channel

  1. The solar system that we're familiar with today arose from a solar nebula, a giant, rotating cloud of particles that encircled the young sun in its early days. These particles eventually formed Earth and the rest of its planetary peers. They also were the building blocks for planetoids and other cosmic bodies.

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Still Curious?
  • What is the best way to see comets?

    Answered by Science Channel

  • What was NASA's Deep Impact?

    Answered by Discovery Channel

  • What is NASA doing to protect us from asteroid impacts?

    Answered by James L. Green


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