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NOVA scienceNOW | The Dark Matter Mystery | PBS

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http://www.pbs.org/nova/scienc... '>http://www.pbs.org/nova/scienc... We can't see dark matter, and some skeptics doubt its existence, but many scientists think it makes up 20-some percent of our universe. Astronomer Doug Clowe explains how the Bullet Cluster, a group of galaxies billions of light years away, may shed some light on this mysterious stuff. Don't miss the new season of NOVA scienceNOW, airing every Wednesday at 9pm starting June 25 on PBS. Watch past episodes of the program, try out interactives, and more on our Web site: http://www.pbs.org/nova/scienc... '>http://www.pbs.org/nova/scienc...

Channel: Science & Technology
Uploaded: December 31, 1969 at 6:59 pm
Author: PBS

Length: 04:38
Rating: 4.40
Views: 57064

Tags: astronomy  astrophysic  Bullet  Clowe  Cluster  cosmic  dark  Doug  galaxy  matter  NOVA  PBS  Science  

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Video Comments

mccote (December 31, 1969 at 6:59 pm)
So all the genius physicists are wrong? Care to show your work?We are in a black hole? I didn't get that memo.
Barbitone (December 31, 1969 at 6:59 pm)
Dark matter doesn't exsist, it's a mis-calculation. The mathematics have been calculated without accounting for black holes (and the fact that we are in side of one) which don't appear to radiate light or heat since they are past the event horizon of a black hole (whole) singularity. (expenential curvature of space time as apposed to linear)
Barbitone (December 31, 1969 at 6:59 pm)
black hole singularity create torque which creates both gravity and electromagnetism in fractional (fractal) golden ratios
statickk14 (December 31, 1969 at 6:59 pm)
WARNING: This video is not for creationist morons!!
rcpwnsu (December 31, 1969 at 6:59 pm)
good one
herito87 (December 31, 1969 at 6:59 pm)
I agree...?
MistressDidi (December 31, 1969 at 6:59 pm)
Interesting, but these theories are based on 3-dimensional constructs such as we experience on Earth. There is always the possibility that what appears top hold the galaxies together is something completely out of our scope of understanding from a 3D perspective.
siouxziesoo (December 31, 1969 at 6:59 pm)
not sure whether the bullet cluster argument is really the best to explain dark matter... but this was good nonetheless. a nice way to explain what dark matter 'is.'
adorianvlad (December 31, 1969 at 6:59 pm)
O.K. but now, on top of all the constants in the Universe, Dark Matter has to have a certain value in order for life to exist.
salman497 (December 31, 1969 at 6:59 pm)
i just flushed my dark matter in Toilet :)

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