7:25
Errant Satellites Provide Test Case for General Relativity
A team of physicists have repurposed two satellites launched into the wrong orbit as an experiment to test one aspect of Einstein’s theory of general relativity.
47:47
Somewhat Silly Science Earns Ig Nobel Prizes
The Ig Nobel Prizes honor scientific research that first makes you laugh, then makes you think.
Cider Science
Making a hard cider is about 50 percent chemistry, and 50 percent is art.
Smelly Bats
A fun game for Halloween that demonstrates diffusion and the properties of stretchy polymers using rubber gloves and flavor extracts.
17:24
Did Dark Matter Doom the Dinosaurs?
Physicist Lisa Randall explores the theory that a disc of dark matter could have been responsible for the catastrophic collision that extinguished the dinosaurs.
Cosmic Connections: Dark Matter and the Dinosaurs
An excerpt from “Dark Matter and the Dinosaurs.”
The Hunt for Dark Matter
Deep in an abandoned gold mine in rural South Dakota, a team of physicists are hunting for astrophysical treasure.
Build A Cloud Chamber
Observe the radioactive particles all around you by building a cloud chamber using a clear container, dry ice, and a little rubbing alcohol.
11:07
The Hunt for Dark Matter
In this week’s Video Pick, scientists hunt for dark matter deep below the Earth’s surface.