Question

what is dark energy and dark matter. ​

Answer 1

☆Dark energy:

¤Dark energy is the name given to the mysterious force that's causing the rate of expansion of our universe to accelerate over time, rather than to slow down. That's contrary to what one might expect from a universe that began in a Big Bang.

☆Dark matter:

¤Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Various astrophysical observations — including gravitational effects that accepted theories of gravity cannot explain unless more matter is present than can be seen — imply dark matter's presence. 

Answer 2

Answer:

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Explanation:

*Dark energy is the name given to the mysterious force that's causing the rate of expansion of our universe to accelerate over time, rather than to slow down. That's contrary to what one might expect from a universe that began in a Big Bang. * Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Various astrophysical observations — including gravitational effects that accepted theories of gravity cannot explain unless more matter is present than can be seen — imply dark matter's presence.