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    Expanding Universe

    All galaxies outside of our own are moving away from us. The galaxies that are furthest away are moving the fastest. They are not moving through space, they are moving in space due to the principle that space is also moving. The universe has no center.

    The universe contains everything in existence. It contains the largest galaxies and the smallest atoms. It formed 13.7 billion years ago in the Big Bang. Since then it is expending at an infinite scope.

    The expanding of the universe was first observed in 1925 by the astronomer Edwin Hubble. He proved the direct relationship between the speeds of distance galaxies and their distances from Earth. This proof is now known as Hubble’s Law and the rate of cosmic expansion is called Hubble's Constant.

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    BrainMass Categories within Expanding Universe

    CMB

    Solutions: 4

    Cosmic microwave background radiation is the thermal radiation filling the observable universe almost uniformly.

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    Problems and Solutions to Statistical Mechanics Problems

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    Entropy Increase

    How can ds = dqr/T (d-bar q(reversible) / T) can be used to determine the entropy increase of a system in an irreversible process. Why does this technique works?

    Expansion of the Universe by Friedmann's Equation

    The expansion of the Universe is described by Friedmann's equation, (R/R)^2 = 8piGp/3 - (kc^2)/(R^2) + lambda/3, where R is the characteristic scale of the Universe, R is its derivative with respect to time, p is the mass density of the Universe, k is a constant which can have values of -1, -, + 1 and lambda is Einstein's

    Universe expansion

    Why is the universe believed to be expanding? Please provide references as well.

    Symbolic Logic Problems Indicated

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