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Will the Universe expand forever?

Will the universe go on expanding forever and what is the shape of the universe? Read how we are trying to find the answers to these questions.

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Expanding Universe

An animation of the movement of galaxies as the universe expands.

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Hits: 1480

Misconceptions about the universe

The expanding universe is a complicated place. This video explains how faster galaxies can move faster than light and how we can see light from beyond our observational universe.

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Hits: 180

How do we know the Big Bang actually happened?

A great interactive guide looking at where did we come from? how can see the universe expanding? why galaxies look redder than they should? what caused the Big Bang? and more

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Hits: 1034

Cosmology FAQ

A long lisit of cosmology questions, dealing with subjects such as the Big Bang, dark matter, black holes, the expanding universe.

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Hits: 3145

hyperphysics

Friedmann Equation

Alexander Friedmann of Russia is credited with developing a dynamic equation for the expanding universe in the 1910s.

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Hits: 2741

hyperphysics

Cosmological Constant

Einstein proposed a modification of the Friedmann equation which models the expanding universe. He added a term which he called the cosmological constant.

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Hits: 2393

Packing Universes In Spacetime

Every lightcone contains infinitely many nearly complete, mutually exclusive, lightcones. This page looks at the maths of this, and its use as a cosmological model.

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Hits: 1664

The Universe Adventure

This fantastic site deals with cosmology : the study of the structure, history, and fate of the Universe. It's the place to go whether you want to know more about dark matter, how our universe formed ...

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Hits: 5916

Anatomy of a refrigerator

Find out how a fridge works by compressing and expanding a coolant in this interactive.

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Hits: 1639

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