Physics Girl

What is Dark Matter? A Mystery of the Universe

2014 • E4    Jun 6, 2014    5m
You've probably heard the term Dark Matter, but what is it, and how do we know it exists?

Where to Watch Physics Girl - 2014 • E4

 

  •   
  •   
  •   
  •   
  •   
  •   
  •   

Take Plex everywhere

Watch free anytime, anywhere, on almost any device.
See the full list of supported devices