Question

what are dark energy and how it is related to the energy density of matter???​

Answer 1

Answer:

DARK ENERGY : Energy in the universe associated with the fact that the expansion of the universe is accelerating and the COMOLOGICAL CONSTANT put forward by einstein could have a non zero value.analysis from the WMAP [wilkinson microwave anissotopy probe satillite] indicates about 70% of the energy is in the form of dark energy. The nature of dak energy is not yet known.

Explanation:

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