The Mystery of Dark Energy

45sec Snip

00:00

Play full episode

Key takeaways

Transcript

Episode notes

% of the universe is made up of dark matter, which is some other kind of matter that has not yet been discovered in the laboratory and doesn't interact noticeably with light.
% of the universe is made up of dark energy, which is something that has a more or less constant energy density, even as the universe expands.
This is what makes dark energy dark, because it changes the way the expansion rate of the universe evolves with time.

Welcome to the March 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number — based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good — and sometimes group them together if they are about a similar topic. Enjoy!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.