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Age of The Universe (1:05)

The universe is approximately 14 billion years old, but how have scientists determined this number? Astrophysicist Alex Filippenko fills us in.

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Videos (6)

  • Age of The Universe
    Age of The Universe

    Video Clip (1:05)

    The universe is approximately 14 billion years old, but how have scientists determined this number? Astrophysicist Alex Filippenko fills us in.

    Video Clip (1:05)
  • What Put the Bang in the Big Bang?
    What Put the Bang in the Big Bang?

    Video Clip (1:09)

    Find out what most physicists believe caused the "bang" when the universe came into being.

    Video Clip (1:09)
  • Hubble Telescope Troubles
    Hubble Telescope Troubles

    Video Clip (2:06)

    How could one of the most complex and expensive optical instruments ever built be near-sighted? See how astronauts became eye doctors to bring things into focus.

    Video Clip (2:06)
  • Backyard Astronomer - Viewing the Planets
    Backyard Astronomer - Viewing the Planets

    Video Clip (3:03)

    Backyard Astronomer video: Viewing the Planets, the basic foundation of our Solar System.

    Video Clip (3:03)
  • What is the Volume of the Known Universe?
    What is the Volume of the Known Universe?

    Video Clip (1:00)

    Ever wonder how immense the universe really is? Astrophysicist Alex Filippenko puts it in perspective.

    Video Clip (1:00)
  • Beyond the Big Bang: Tour of the Universe
    Beyond the Big Bang: Tour of the Universe

    Video Clip (2:14)

    In a History "Beyond the Big Bang" video, take a tour of the universe. For us, the view of the universe begins with earth, a silicone and oxygen based planet with a metallic core. The earth's surface is mostly made up of water and teems with life.

    Video Clip (2:14)

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