Harvard scientist Lisa Randall asserts that dark matter possesses five times the energy of ordinary matter, which is a reflection of its significant mass contribution to the universe. The discussion clarifies that dark matter constitutes approximately five-sixths of the total mass-energy content of the universe, while also acknowledging the existence of dark energy. The application of E=mc² remains valid for dark matter, as it relates to its mass-energy equivalence. The conversation emphasizes the distinction between dark matter and dark energy in understanding the universe's composition.
PREREQUISITESAstronomers, physicists, and students of cosmology seeking to deepen their understanding of dark matter and its implications for the universe's energy content.
There's about five times as much mass in our universe in dark matter as there is in normal matter.DLSieving said:What is meant by the statement by Harvard scientist Lisa Randall that dark matter carries five times the energy of ordinary matter? Does E=mc2 not apply to dark matter? Does the statement refer to ordinary energy or to dark energy?
No, that's not an accurate statement, as there's also dark energy. Her statement was accurate as-is.DLSieving said:Ok thanks. She should have said something more like "Dark matter accounts for five sixths of the total massenergy content of the universe."