The Sombrero Galaxy –Is There a Monster Black Hole at its Core?

 

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Monster elliptical galaxies such as the Sombrero Galaxy  have long been thought to form when two smaller spiral-shaped galaxies collide. They range in shapes from a flattened cigar shape to a spherical shape.  They also range in size from dwarfs to supermassive giants.  You will usually find elliptical galaxies near the center of  galaxy clusters.  The Sombrero is one of most famous of the ellipticals. Because of it’s odd shape astronomers believe that there is a supermassive black hole at the core.

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New Insights into Jupiter’s Massive Levy-Shoemaker & 2009 Impacts

 

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Since 1941 many astronomers have thought of Jupiter as a protective big brother for planet Earth -a celestial shield, deflecting asteroids and comets away from the inner Solar System. This long-standing belief that Jupiter acts as a celestial shield, deflecting asteroids and comets away from the inner Solar System, has been challenged by a series of studies evaluating the impact risk to the Earth posed by different groups of object such as the Levy Shoemaker impacts in 1991 and the Pacific-Ocean sized impact of 2009.

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Enceladus’s “Tiger Stripes” –Are They a Possible Life Zone Hotspot?

 

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Heat output from the south polar region of Saturn's moon Enceladus is far greater than was previously thought possible, according to analysis of data collected by NASA's Cassini spacecraft, published in the Journal of Geophysical Research. Data from Cassini's composite infrared spectrometer of Enceladus' south polar terrain, which is marked by linear fissures, indicate that the internal heat-generated power is about 15.8 gigawatts, approximately 2.6 times the power output of all the hot springs in the Yellowstone region, or comparable to 20 coal-fueled power stations.

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The Earth Before Oxygen –Bacteria Thrived

 

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Microfossils found in Australia show that more than 3.4 billion years ago, bacteria  that fed on sulphur compounds to survive, thrived on an Earth that had no oxygen –a finding that boosts hopes life has existed on Mars and elsewhere, according to a 2011 study by researchers from the University of Western Australia and Oxford University.

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NewsAlert: Physicists Gain Insights Into New State of Matter

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Physicists at the University of California, San Diego discovered the phenomena that underlie the formation of spontaneous coherence of excitons is certain to produce a better scientific understanding of this new state of matter. It will also add new insights into the quirky quantum properties of matter and, in time, lead to the development of novel computing devices and other applications in the field of optoelectronics where understanding of basic properties of light and matter is needed.

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