universe – TRUEANGLE

The beginning of the universe, for beginners – Tom Whyntie

[youtube https://www.youtube.com/watch?v=DmUiCweDic4?rel=0&w=640&h=480]

Dark matter: The matter we can’t see – James Gillies

[youtube https://www.youtube.com/watch?v=HneiEA1B8ks?rel=0&w=640&h=480]