TV-PG
S2 • E6 Jan 15, 2008 45m7.85.0
Scientists hunt for dark matter in the strangest of places. They know where it is, what it does and can sort of see it if they look in the right way. They just can't quite figure out what it is or how to get their hands on it even though it's everywhere. But it is well understood compared to dark energy which is an even bigger mystery.
