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Physicist Patricia Burchat sheds light on two basic ingredients of our universe: dark matter and dark energy. Comprising 96% of the universe between them, they can't be directly measured, but their influence is immense.
Aired August 17, 2008
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Bee Q
This was an amazing explanation!
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Thendral P
If the dark matter sensing crystal is so sensitive, how can you be sure that it isn't set off by earthly vibrations even though it's set up underground?
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Bee Q
They can't. What they do is they have many different detectors in different places. If only one of them detects something it is most likely a "false alarm". When you repeat these measurements over and over in different places and have similar results, then the probability that they have detected dark energy/matter is greater.
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