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.
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.
11:53
The Mysterious Flicker Behind Star KIC 8462852
Astronomers explore theories behind a distant star with a mysterious glow, including swarming comets and alien megastructures.
Cosmic Connections: Dark Matter and the Dinosaurs
An excerpt from “Dark Matter and the Dinosaurs.”
This ’70s Artist Painted Our Future In Space
Forty years ago, artist Rick Guidice teamed up with NASA scientists to envision the space civilizations of the future.
11:07
The Hunt for Dark Matter
In this week’s Video Pick, scientists hunt for dark matter deep below the Earth’s surface.
Did Dark Matter Kill the Dinosaurs?
The invisible stuff that comprises a quarter of the universe could be more complex that previously thought.
4850 Feet Below: The Hunt for Dark Matter
Deep in an abandoned gold mine in rural South Dakota, a team of physicists hunt for rare and elusive quarry: dark matter.
12:08
On Mars, Signs of a Wetter World
Planetary scientist James Wray describes the evidence for present-day liquid water on Mars.
25:14
Science Goes To The Movies: The Martian
An astronaut and a NASA engineer weigh in on “The Martian,” on this edition of Science Friday’s “Science Goes to the Movies.”