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Title: Big Questions: Dark Matter

Carl Sagan's oft-quoted statement that there are "billions and billions" of stars in the cosmos gives an idea of just how much "stuff" is in the universe. However scientists now think that in additionmore » to the type of matter with which we are familiar, there is another kind of matter out there. This new kind of matter is called "dark matter" and there seems to be five times as much as ordinary matter. Dark matter interacts only with gravity, thus light simply zips right by it. Scientists are searching through their data, trying to prove that the dark matter idea is real. Fermilab's Dr. Don Lincoln tells us why we think this seemingly-crazy idea might not be so crazy after all.« less
Title: Big Questions: Dark Matter
Authors:
Publication Date: 2013-12-05
OSTI Identifier: 1148912
Resource Type: Multimedia
Research Org: FNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
Sponsoring Org: USDOE
Subject: 79 ASTRONOMY AND ASTROPHYSICS ; PHYSICS ; DARK MATTER ; CERN ; GALAXY ROTATION ; GALAXYIES ; MATTER ; INVISIBLE MATTER ; GRAVITY
Country of Publication: United States
Language: English
Run Time: 0:06:44
System Entry Date: 2016-01-27