PBS
Pbs Learning Media: Crash Course Astronomy: Dark Matter
Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn't all there is. Galaxies and other large structures in the universe are created and shifted by a force we...
Crash Course
Crash Course Astronomy #41: Dark Matter
Find out that the matter we can actually observe in the universe isn't all there is. Galaxies and other large structures in the universe are created and shifted by a force we detect mostly indirectly, by observing its impact, dark...
Science Friday Initiative
Science Friday: More to the Universe Than Meets the Eye
Much of what exists in the universe is believed to be invisible, and that there may be other dimensions. A scientist discusses research into dark matter and what we know so far. Aired June 22, 2009 [12:07 min]
Khan Academy
Khan Academy: Ways of Knowing Introduction to Cosmology
The history of the Universe decorates the night sky. Learn how to watch this history by studying cosmic light emissions. [6:22]
Science Friday Initiative
Science Friday: Dark Energy Confirmed
This week scientists announced that they have confirmation on the presence of dark energy in the universe. We'll talk about their study and what it means.
Science Friday Initiative
Science Friday: Dark Matter Just Got More Mysterious
A smashup between two galaxy clusters left an unexpected amount of dark matter in its wake.
Science Friday Initiative
Science Friday: Adam Riess: One Cosmic Puzzle Solved, Many to Go
Nobel Prize-winning astrophysicist Adam Riess discusses the mysterious force known as dark energy in this audio recording. Learn how he believes this dark energy is accelerating the expansion of the universe. [22:36]
Science Friday Initiative
Science Friday: Ex Spy Telescopes May Aid Hunt for Dark Energy
The spy telescopes are wide-angle and short in length--earning them the nickname "stubby Hubbles." [18 mins. 8 secs.]