Nepal – the country of the Buddha and the Mt. Everest

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Posts Tagged ‘Galaxy’

‘Scientists understand only 4% of universe’

Posted by Ram Kumar Shrestha on July 30, 2012

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Deepak Chopra- Learn How to Meditate (Nauči meditirati)

Posted by Ram Kumar Shrestha on July 9, 2012

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Dark Matter, Darker Still: The Cosmos’ Greatest Mystery Deepens

Posted by Ram Kumar Shrestha on October 27, 2011

By MICHAEL D. LEMONICK

The galaxy of Andromeda, the nearest large galaxy to our own, circa 1990 Space Frontiers / Hulton Archive / Getty Images

Like Hollywood legends Audrey Hepburn and Katharine Hepburn, dark energy and dark matter are completely unrelated, even though they share a name. Dark energy, a force that makes the universe expand faster and faster all the time, is called dark because it’s mysterious. Nobody knows what it is. Dark matter, on the other hand, a type of matter that outweighs ordinary stars and galaxies 5 to 1, is called dark because it’s utterly invisible. We know it’s there because its gravity yanks galaxies and stars around, but it neither emits nor reflects any light.

Both darks are a big deal in astronomy. The accelerating universe, the first evidence that dark energy exists, earned three physicists the Nobel Prize just a few weeks ago. But dark matter has somehow failed to impress the Nobel committee, even though the idea has been around a lot longer. In the 1930s, astronomer Fritz Zwicky first suggested that given how fast galaxies whip around in space, they ought to fly apart — and would, if there weren’t some invisible matter holding them gravitationally together. In the 1970s, physicists Vera Rubin and Kent Ford came in with stronger evidence for the existence of dark matter, but their work too was received with shrugs. Over time, however, dark matter has become an accepted part of modern astronomy — and now that it is, a new study, soon to be published in the Astrophysical Journal, is calling some of the fundamental assumptions about it into question.(Read about dark matter and how starburst galaxies are formed.)

The conventional wisdom since the early 1990s has been that dark matter consists of giant clouds of still undiscovered subatomic objects known as “weakly interacting massive particles,” or WIMPs (an example of astronomer humor that will undoubtedly appeal to fans of the Big Bang theory). Recently, astronomer Matt Walker of the Harvard-Smithsonian Center for Astrophysics and a colleague undertook a study of two dwarf galaxies hovering on the edges of the Milky Way, looking for new clues to the behavior of WIMPs — and came away questioning whether the particles were there at all. “Our results,” Walker says, “pose a real challenge to cold dark matter. I think it’s certainly a problem.” Read the rest of this entry »

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Nasa Finds ‘Star Wars’ Planet With A Double Sunset (Video)

Posted by Ram Kumar Shrestha on September 16, 2011


How many of we will be able to migrate to the new planet? That planet will also be spoiled as earth in the near future and we need to do lots of things there. If we everybody really serious to make this world better place, that could be better idea.
Read the Article at HuffingtonPost

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TrES-2b: Astronomers Discover Darkest Known Exoplanet (PHOTO)

Posted by Ram Kumar Shrestha on August 13, 2011


Interestin­g and waiting to have more informatio­n in the near future.
Read the Article at HuffingtonPost

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Linga, Peace and Joy, Ordinary to Extraordinary

Posted by Ram Kumar Shrestha on April 26, 2011

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