Big Questions: Dark Matter
Δημοσιεύτηκε στις 5 Δεκ 2013
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 addition 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.
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 addition 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.
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