Crash Course – Astronomy – 41: Dark Matter

This is the forty-first video of the Crash Course – Astronomy series, hosted by Dr. Phil Plait. This video describes how the effects of “dark matter” have been observed in recent decardes, and the efforts to map dark matter in the universe.

From the video description:

Table of Contents:

  • Normal and Dark Matter 0:55
  • Dark Matter Only Interacts With Normal Matter Through Gravity 4:27
  • Dark Matter Bends Light 5:08
Crash Course Astronomy Video



Crash Course channel on YouTube

Crash Course channel on YouTube

Source for free educational videos with high quality production.


Crash Course - Astronomy Series

Crash Course - Astronomy Series

This collection of YouTube videos is hosted by astronomer Phil Plait. It covers a vast range of astronomical topics at an introductory and approachable level.