PBS NewsHour

Mapping dark matter may help solve a cosmic mystery

Clip: 04/14/2015 | 4m 57s

We can't see dark matter, but scientists have made the largest map yet of the invisible material that helps make up the universe. Researchers used a dark energy camera and a large telescope to create a color-coded chart of just a small part of the cosmos. Jeffrey Brown talks to Sean Carroll of the California Institute of Technology about how they did it and why it matters.

Aired: 04/14/15

Rating: NR

Problems Playing Video? | Closed Captioning

Major corporate funding for the PBS NewsHour is provided by BNSF, Consumer Cellular, Leidos, Babbel, and Raymond James. Funding for the PBS NewsHour Weekend is provided by Mutual of America. …