Copy into your RSS Reader
Copy into your Podcast App
The hunt for dark matter started with astronomer Fritz Zwicky's observations of the Coma galaxy cluster in the 1930s. This recent image of the Coma cluster combines optical and X-ray observations from the Chandra mission.
J.Sanders et al/NASA/CXC/MPE/SDSS
November 6, 2013 The hunt for dark matter started in the 1930s and shows no signs of ending any time soon. But physicist Marcelo Gleiser says our inability to pin down this key component to reality only makes it more alluring.
NPR thanks our sponsors
Become an NPR sponsor