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NOVA scienceNOW | The Dark Matter Mystery | PBS

Channel: Science & Technology, Author: PBS
Uploaded: November 30, 1999 at 12:00 am
Length: 04:38, Rating: 4.41, Views: 59500

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

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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... "


Video Comments

DrDarkEnergy on November 30, 1999 at 12:00 am
What will LHC give us: the particle of God, or magnetic trap of Devil. Magnetic trap is an axial-symmetric magnetic analogue of a black hole. It is 10^36 stronger than spheric gravitational black hole. CERNs specialists do not know about the magnetic trap yet. If microscopic magnetic trap will be made in CERN's LHC, the Earth will be transformed into an infinitely thin emptiness, surrounded by circular current of 6 meter radius. Compare: Schwarzschild radius of such mass is 0,009 meters.
Ollievarium on November 30, 1999 at 12:00 am
Dark matter is actually god having a laugh=p
Ollievarium on November 30, 1999 at 12:00 am
hahaha!
Bizzer10 on November 30, 1999 at 12:00 am
couldnt this be small planets of machos?
Bizzer10 on November 30, 1999 at 12:00 am
what allows "normal" matter to interact with light? that should be the first question asked, then we should compare these findings with other particles that dont enteract with light to determine what properties cause this and then consider that this porperty is not inate but dependent on something undiscovered well, i guess
RJL738 on November 30, 1999 at 12:00 am
Actually dark matter makes up more than 90% of the universe. Theories rang from an extra partical to an interacting dimentional brane, or even an extra part of the universe almost like what the Oort cloud is to the solar system. Part of the reason galaxies hold together is because of a halo of dark matter.
girlmelissa on November 30, 1999 at 12:00 am
i think that dark or light matter is hard to see if you are one or the other , and there are frequency,s of matter. how can we in our frequency ever find something that is not/
ingphaaze on November 30, 1999 at 12:00 am
barbitone please explain why you say that we are in a black hole...and even if we were in a black hole we essensially wouldn't exsist,(before we even get close to the singularity the gravitational forces would be so strong that we all would be spagettified,and torn apart to our sub subatomic particles quarks,leptons etc, sooo i think your theory that we are in a black hole is completely illogical sorry. 16
mccote on November 30, 1999 at 12:00 am
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 on November 30, 1999 at 12:00 am
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)
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