Dark Matter Clouds Pinpointed in an Ancient Galaxy Cluster

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The ghostly blue clouds in the center of the Abell 1689 galaxy cluster show where Dan Coe and his team think dark matter is hiding. Abell 1689 is home to about 1,000 galaxies and trillions of stars.

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NewsFlash: Voyager Set to Enter Interstellar Space of Milky Way 30 Years After Launch

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More than 30 years after they left Earth, NASA's twin Voyager probes are now at the edge of the solar system. Not only that, they're still working. And with each passing day they are beaming back a messages any one of which could contain an unextected discovery about the cosmos.

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Alien Eyes: Andromeda Galaxy Viewed Through the Electromagnetic Spectrum

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"Our human window on the Universe is terribly small within a stunningly small range of wavelengths. With our eyes we see wavelengths between 0.00004 and 0.00008 of a centimeter (where, not so oddly, the Sun and stars emit most of their energy). The human visual spectrum from violet to red is but one octave on an imaginary electromagnetic piano with a keyboard hundreds of kilometers long."

James Kaler, astronomer and author of "Heavens Gate: From Killer Stars to the Seeds of Life, How We are Connected to the Universe."

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NewsAlert: NASA’s Search for Parallel Universes & Dark Matter to Launch Tomorrow

Parallel-universes A futuristic experiment sounding like something out of a scifi novel, that will hunt for antimatter galaxies and signs of dark matter, was nearly cancelled but is finally poised to voyage into orbit aboard the next-to-last space shuttle mission.

The $2 billion Alpha Magnetic Spectrometer, a more than 15,000-pound (6,900-kilogram) device searching for cosmic- rays — high-energy charged particles from outer space — will ride up to the International Space Station on the shuttle Endeavour this Friday April 29.

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NASA Robots Probe Japan’s Fukushima Nuclear Reactor

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The really scary thing about Japan's Fukushima nuclear crisis is that the cores were drifting toward meltdown, and humans couldn't reach them. Helicopter missions to dump water on the reactors were called off due to radiation, and more than 90 percent of the plant's workers had to evacuate. Catastrophe was imminent because humans could do nothing. But our robot creations could: they can survive radiation, and if radiation kills them, they are expendable.

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