August 7, 2014
Mohenjo
Science
amazon, Astronomers, Astronomy, Big Mystery in Perseus Cluster, business, Business News, Chandra X Ray Observatory, Dark Matter, Dark Matter Mystery, Esra Bulbul, Galaxy Strange Signal, Harvard Center for Astrophysics, Hotels, huffingtonpost, human-rights, massive galaxy cluster, medicine, mental-health, Mysterious X Ray, Mysterious X Ray Signal, Nasa Mysterious Signal, Particle Physics, Perseus Cluster, Perseus Cluster Mystery, research, Science, Science News, Slideshow, Strange Signal, Strange X Ray, technology, Technology News, travel, vacation
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When astronomers detected a strange signal in a massive galaxy cluster millions of light years from Earth, they knew they had stumbled upon something big.
“I couldn’t believe my eyes,” Esra Bulbul, of the Harvard Center for Astrophysics, said in a written statement. “What we found, at first glance, could not be explained by known physics.”
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January 2, 2014
Mohenjo
Science
alien planet, Alien Planets, Alien Planets 2013, Alien Worlds, amazon, Astronomers, Astronomy, business, Business News, Earth's moon, Exoplanet, Exoplanets, Habitable Exoplanets, Hotels, huffingtonpost, human-rights, Kepler, Kepler Mission, Kepler Planets, Kepler-37b, medicine, mental-health, NASA, Planets, research, Science, Science News, Search for E.T., Slideshow, Space, technology, Technology News, travel, vacation
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While astronomers didn’t bag that elusive first “alien Earth” in 2013, they made plenty of exciting exoplanet discoveries during the past year.
Here’s a list of the top exoplanet finds of 2013, from a tiny world about the size of Earth’s moon to a blue gas giant on which it rains molten glass:
The smallest exoplanet
In February, astronomers announced the discovery of Kepler-37b, the smallest alien world ever found around a sun-like star. The planet is about 2,400 miles (3,900 kilometers) wide, making it just slightly larger than Earth’s moon.
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Data from NASA’s Kepler mission finds evidence for at least 100 billion planets in our galaxy. Image released January 3, 2013. | NASA
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November 28, 2013
Mohenjo
Science
amazon, AOL video, Astronomers, astrophysicist Karl Battams, business, Business News, Comet Ison, fiery death, Hotels, human-rights, icy comet, ISON, ISON (EYE'-sahn), Karl Battams, medicine, mental-health, NASA, NASA telescopes and spacecraft, Naval Research Laboratory, research, Science, Science News, Solar System, Sun, survive, technology, Technology News, Thanksgiving, travel, vacation, Video, Will it meet a fiery death
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Comet ISON is teasing the solar system as it dances with the sun and it’s giving astronomers mixed signals.Will it meet a fiery death – or survive – when it whips around the sun on Thursday?
The icy comet will be only about 1 million miles away from the sun’s super-hot surface during its close encounter on Thanksgiving. On Monday, it looked like it was about to die even before it got there. On Tuesday, it appeared healthy again.
“We have never seen a comet like this,” Naval Research Laboratory astrophysicist Karl Battams said during a NASA news conference Tuesday. “It has been behaving strangely.”
Because it is so close to the sun, ISON (EYE’-sahn) will likely not be visible from Earth on Thursday – except via a fleet of NASA telescopes and spacecraft aimed at the comet as it gets closest to the sun at 1:37 p.m. EST, he said. And it will be a few hours before scientists know whether the comet survives.
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September 13, 2013
Mohenjo
Science
amazon, Astronomers, business, Business News, central bulge, climate, dense clouds, ESO, ESO telescopes, ESO’s VISTA survey telescope, galactic bulge, galactic disc, Galaxy, Hotels, infrared radiation, Massive Star Milky Way, Milky Way, research, Science, Science News, survey telescope, technology, Technology News, telescopes, travel, vacation, wavelength light
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Two groups of astronomers have used data from ESO telescopes to make the best three-dimensional map yet of the central parts of the Milky Way. They have found that the inner regions take on a peanut-like, or X-shaped, appearance from some angles. This odd shape was mapped by using public data from ESO’s VISTA survey telescope along with measurements of the motions of hundreds of very faint stars in the central bulge.
One of the most important and massive parts of the galaxy is the galactic bulge. This huge central cloud of about 10 000 million stars spans thousands of light-years, but its structure and origin were not well understood.
Unfortunately, from our vantage point from within the galactic disc, the view of this central region — at about 27 000 light-years’ distance — is heavily obscured by dense clouds of gas and dust. Astronomers can only obtain a good view of the bulge by observing longer wavelength light, such as infrared radiation, which can penetrate the dust clouds.
Earlier observations from the 2MASS infrared sky survey had already hinted that the bulge had a mysterious X-shaped structure. Now two groups of scientists have used new observations from several of ESO’s telescopes to get a much clearer view of the bulge’s structure.
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February 15, 2013
Mohenjo
Science
amazon, Astronomers, Astronomy, climate, companion star, Forecast Star Death, giant explosions, Hotels, huffingtonpost, million light years, NASA, NASA's Swift mission, palomar observatory, research, Science, Science News, Space, Star Death, Stars, stellar explosions, Supernova Death, Supernova Explosion, Supernova Forecast, Supernovas, technology, Telescope, travel, vacation, Video
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Forecasting when stars will die in giant explosions may one day be possible by looking for the warning outbursts they release beforehand, researchers say.
Supernovas are the most powerful stellar explosions in the universe, visible all the way to the edge of the cosmos. These stars detonate for two known reasons: either from gorging on too much mass stolen from a companion star or by running out of fuel and abruptly collapsing.
Astronomers have suggested that stars can give off smaller explosions just before they go supernova. To find out more about supernovas, researchers used three telescopes — the Palomar Observatory, the Very Large Array and NASA’s Swift mission — to investigate a star 500 million light-years away.
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The image shows a simulation of a collision between two shells of matter ejected by a massive star in two subsequent pulsational pair-instability supernova eruptions, only years apart, just before the star dies. Image released Feb. 7, 2013.
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http://www.huffingtonpost.com/2013/02/12/supernova-warning-explosion-star-death_n_2668510.html?ref=topbar
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December 7, 2012
Mohenjo
Science
American Museum of Natural History, Astronomers, Astronomy, Astrophysics, aviation, Benoit Borgue, Biggest Black Hole, Black Hole, Black Hole Quasar, black holes, Bronx Manhattan, business, climate, Computer models, distant galaxy, early universe, Galaxies, huffingtonpost, light computer, Most Powerful Galactic Eruption, Physics, Quasar, research, Science, Science News, SDSS J1106+1939, Space, technology, travel, vacation, Video, Virginia Tech
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Astronomers have seen a distant galaxy that blasts away material with two trillion times the energy the sun emits — the biggest such eruption ever seen. That ejection of matter could answer an important question about the universe: why are the black holes in the centers of galaxies so light?
Computer models of the early universe usually produce a virtual cosmos that looks like ours except for one thing. The ratio of the mass of black holes in galaxy centers to the rest of the matter in galaxies is larger in the simulations than in the real universe.
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http://www.huffingtonpost.com/2012/11/28/black-hole-quasar-eruption_n_2203663.html?utm_hp_ref=science
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James' World 2 