"And to this day, [those] who...know the self as I am Brahman [IS-ness], become all this universe. Even the gods [any other dimensional beings] cannot prevent his becoming this, for he has become their Self. ...if a man worships another deity thinking: He is one and I am another, he does not know. He [who does not know] is like a sacrificial animal to the gods. As many animals serve a man, so does each man serve the gods. Even if one animal is taken away, it causes anguish to the owner; how much more so when many are taken away! Therefore it is not pleasing to the gods that men should know this [that they are IS-ness]." Brihadaranyaka Upanishad, I.iv.10

Saturday, May 19, 2012

Narrowing the Search for Dark Matter

Scientists have further narrowed the search for a hypothetical particle that could be dark matter, the mysterious stuff that makes up 80 percent of all the mass in the universe. This video from NASA Astrophysics presents the new results, compiled from two years' worth of data from NASA's Fermi Gamma-ray Space Telescope. Gamma rays are very energetic light, and the telescope looks for faint gamma-ray signals that are generated by a variety of sources, such as gas and dust spiraling into supermassive black holes or exploding stars. But another potential source of gamma rays is dark matter. Although no one is sure what dark matter is, one of the leading candidates is a yet-to-be-discovered particle called a weakly interacting massive particle (WIMP). When two of these WIMPs meet, the theory goes, they can annihilate one another and generate gamma rays. There are many possible versions of WIMPs, and they're expected to span a wide range of masses, producing a range of gamma rays with different energies. Using Fermi, the scientists focused on 10 small galaxies that orbit the Milky Way, searching for gamma-ray signals within a specific range of energies. They found no signs of annihilating WIMPs, which rules out certain kinds of WIMPs as dark-matter candidates.

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