Dark Matter and Dark Energy: The Frontier of Astronomy
For a while now, we've been discussing all of things we know about the universe. What about some of the things we don't know?
2019-02-27 19:00:00 - Professor Dave
If we look to the current frontier of astronomy, we find two mystifying concepts, dark matter and dark energy.
What are these things?
How do we know they exist?
Do we have any guesses as to what they are?
Find out here!