Big Picture Science – Big Questions Somewhat Answered: Intro to Dark Energy

by Gary Niederhoff on January 19, 2015

Intro to Dark Energy
click to listen (trt 2:18)

Part 5 of Big Questions Somewhat Answered, featuring Sean Carroll, cosmologist at the California Institute of Technology, explaining how dark energy was discovered.

{ 1 comment… read it below or add one }

avatar Richard February 11, 2015 at 2:05 am

If dark energy is the energy of “empty space” (although how can space be “empty” if it contains energy and maybe dark matter also) and empty space is expanding then is the energy of the Universe expanding also? We were taught that mass-energy can neither be created nor destroyed but here it seems to be continuously created. Or what am I conjecturing wrong?

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