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Hubble Finds That the Nearest Quasar Is Powered by a Double Black Hole

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Astronomers using NASA’s Hubble Space Telescope have found that two central black holes whirling about each other, power Markarian 231 -- the closest galaxy to Earth that hosts a quasar. The finding suggests quasars, which are intense bright spots found in centers of galaxies, can be created by double-supermassive black holes that frantically orbit each other, generating tremendous amounts of energy in the process.

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Astronomers Unravel the History of Galaxies for the First Time

A team of international scientists, led by astronomers from Cardiff University’s School of Physics and Astronomy, has shown for the first time that galaxies can change their structure over the course of their lifetime.

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Dying Star Suffers ‘Irregular Heartbeats’

Some dying stars suffer from ‘irregular heartbeats’, research led by astronomers at the University of Warwick has discovered.

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Stephen Hawking Unveils Black Hole Theory That May Explain 'Information Loss Paradox'

Renowned physicist Stephen Hawking unveils his new theory adding to his work on the quantum mechanics of black holes. Click to watch video

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‘Kathryn’s Wheel’ Collision Lights Up Galaxy

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A spectacular collision between galaxies has been spotted near the Milky Way. Two small star systems are slamming into each other, producing a colourful firework display.

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Top Stories 21 August 2015

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New Data From Antarctic Detector Firms Up Cosmic Neutrino Sighting

Researchers using the IceCube Neutrino Observatory have sorted through the billions of subatomic particles that zip through its frozen cubic-kilometer-sized detector each year to gather powerful new evidence in support of 2013 observations confirming the existence of cosmic neutrinos. The evidence is important because it heralds a new form of astronomy using neutrinos, the nearly massless high-energy particles generated in nature’s accelerators: black holes, massive exploding stars and the energetic cores of galaxies.

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Cancer Patients Helping UT Southwestern Scientists and NASA Study Pressure Inside the Brain During Zero Gravity

UT Southwestern Medical Center researchers, in conjunction with NASA, will take four volunteer cancer patients on a zero-gravity ride into the upper atmosphere to study why zero-gravity conditions on the International Space Station sometimes affect the vision of astronauts staying there for extended periods.

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Dark Energy Survey Finds More Celestial Neighbors

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Scientists on the Dark Energy Survey, using one of the world’s most powerful digital cameras, have discovered eight more faint celestial objects hovering near our Milky Way galaxy. If these new discoveries are representative of the entire sky, there could be many more galaxies hiding in our cosmic neighborhood.

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Astronomers Discover ‘Young Jupiter’ Exoplanet

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A team of astronomers that includes University of Georgia professor Inseok Song has discovered a Jupiter-like planet within a young star system that could serve as a decoder ring for understanding how planets formed around the sun.