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Interactive Universe

Take a journey through the universe and explore planets, nebulas, black holes, comets and more.

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Interactives (2)

Videos (20)

  • 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)
  • 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)
  • Solar Eclipses
    Solar Eclipses

    Video Clip (1:02)

    Will solar eclipses eventually become a thing of the past? If so, when?

    Video Clip (1:02)
  • Matter or Energy: Which is More Plentiful?
    Matter or Energy: Which is More Plentiful?

    Video Clip (1:01)

    Which is more abundant in the universe, matter or energy?

    Video Clip (1:01)
  • Faster Than Light Expansion
    Faster Than Light Expansion

    Video Clip (1:06)

    Is it possible for the universe to expand faster than the speed of light, or would that violate Einstein's Theory of Relativity?

    Video Clip (1:06)
  • Where Do Quasars Originate?
    Where Do Quasars Originate?

    Video Clip (1:01)

    Accelerating nearly as fast as the speed of light, where exactly do quasar jets form?

    Video Clip (1:01)
  • Exploding Star Chemicals
    Exploding Star Chemicals

    Video Clip (1:02)

    Are heavy chemical elements produced by star explosions? If so, how do we know this?

    Video Clip (1:02)
  • Can Antimatter Naturally Occur?
    Can Antimatter Naturally Occur?

    Video Clip (0:58)

    Astrophysicist Alex Filippenko explores whether antimatter can naturally occur in the universe and explains what exactly a positron is.

    Video Clip (0:58)
  • What is a White Hole?
    What is a White Hole?

    Video Clip (0:57)

    We've all heard of black holes, but what exactly is a white hole?

    Video Clip (0:57)
  • What is Dark Energy?
    What is Dark Energy?

    Video Clip (0:59)

    What role does dark energy play in the universe? Astrophysicist Alex Filippenko describes a discovery that changed our understanding of how the universe works.

    Video Clip (0:59)
  • Expansion, What Does it Apply to?
    Expansion, What Does it Apply to?

    Video Clip (1:00)

    Does the expansion of the universe apply to our bodies, Earth and the solar system? Astrophysicist Alex Filippenko explains.

    Video Clip (1:00)
  • Beyond the Big Bang: Copernicus
    Beyond the Big Bang: Copernicus

    Video Clip (4:25)

    In a History Beyond the Big Bang video, discover that beneath the marble floor of Frombork Church in northeastern Poland, inside a dusty crypt, local legend believes that the body of famed astronomer, Nicolas Copernicus, is buried.

    Video Clip (4:25)
  • Beyond the Big Bang: Galileo Galilei
    Beyond the Big Bang: Galileo Galilei

    Video Clip (3:36)

    In a History Beyond the Big Bang video, discover that the sophisticated telescopes used by astronomers today to see distant galaxies are direct descendents of the humble lenses used by Galileo Galilei over four hundred years ago.

    Video Clip (3:36)
  • Beyond the Big Bang: Einstein World
    Beyond the Big Bang: Einstein World

    Beyond the Big Bang shows us how Albert Einstein's theory of special relativity explored the link between space and time.

    Video Clip
  • Beyond the Big Bang: Sir Isaac Newton's Law of Gravity
    Beyond the Big Bang: Sir Isaac Newton's Law of Gravity

    Video Clip (4:38)

    In this History Channel video clip on Isaac Newton, we learn a lot about the scientist who is said to be the smartest one to have ever lived. Learn a bit about gravity and Newton's analysis on the moon. His laws explain almost everything.

    Video Clip (4:38)
  • Exploring the Big Bang Theory
    Exploring the Big Bang Theory

    Video Clip (4:29)

    In this History Channel video clip on Lemaitre, we learn a lot about the scientist and a bit about the theory on the Big Bang. With the help of some Einstein theories, Lemaitre conceived a theory of his own that may have proved to be right.

    Video Clip (4:29)
  • 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)
  • The Universe: Deep Freeze
    The Universe: Deep Freeze

    Video Clip (44:16)

    Far-off frozen places bring strange new mysteries. Join us as we travel in search of the lowest temperatures in the universe and the ultimate deep freeze.

    Video Clip (44:16)

Photo Galleries (4)

Speeches & Audio (2)

  • Voyager Spacecraft 30 Years Later
    Voyager Spacecraft 30 Years Later

    Audio Clip (1:12)

    As the twin Voyager spacecraft prepare to embark on an extended mission to explore interstellar space in 2006, project scientist Ed Stone of California Institute of Technology recaps the major discoveries the Voyagers have made since their launch in 1977.

    Audio Clip (1:12)
  • Viking 1 Lands on Mars
    Viking 1 Lands on Mars

    Audio Clip (0:20)

    On July 20, 1976, NASA's Viking 1 becomes the first spacecraft to send back detailed pictures from the surface of Mars. A NASA control room recording captures the excitement of the moment.

    Audio Clip (0:20)

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