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Open University
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Dark Energy
This animated clip describes how Einstein used the cosmological constant as a way of keeping his model of the Universe static but that Hubble showed that the Universe was actually expanding. However, evidence now tells us that since the universe is accelerating in its expansion, a new term for what is causing this has been coined “dark energy”, which is in its simplest form a cosmological constant.
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