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astrophysics, cosmology, the universe...

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New insight found in black hole collisions

New research by an astrophysicist provides revelations about the most energetic event in the universe - the merging of two spinning, orbiting black holes into a much larger black hole.

Posted: Feb 26th, 2015

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Looking deeply into the universe in 3-D

The MUSE instrument on ESO's Very Large Telescope has given astronomers the best ever three-dimensional view of the deep Universe. After staring at the Hubble Deep Field South region for only 27 hours, the new observations reveal the distances, motions and other properties of far more galaxies than ever before in this tiny piece of the sky. They also go beyond Hubble and reveal previously invisible objects.

Posted: Feb 26th, 2015

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Astronomers find impossibly large black hole

Astronomers have found a huge black hole which was powering the brightest object in the early universe. The black hole's mass is 12 billion solar masses, and the surrounding quasar pumped out 10^15 times the sun's energy.

Posted: Feb 25th, 2015

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Physicists offer a solution to the puzzle of the origin of matter in the universe

Most of the laws of nature treat particles and antiparticles equally, but stars and planets are made of particles, or matter, and not antiparticles, or antimatter. That asymmetry, which favors matter to a very small degree, has puzzled scientists for many years. New research offers a possible solution to the mystery of the origin of matter in the universe.

Posted: Feb 25th, 2015

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Giving shape to black holes' intense winds

By looking at the speed of ambient gas spewing out from a well-known quasar, astronomers are gaining insight into how black holes and their host galaxies might have evolved at the same time.

Posted: Feb 20th, 2015

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Classical nova explosions are major lithium factories in the Universe

Lithium is a key element in the strudy of the chemical evolution of the universe because it likely was and is produced in several ways: through Big Bang nucleosynthesis, in collisions between energetic cosmic rays and the interstellar medium, inside stellar interiors, and as a result of novae and supernova explosions.

Posted: Feb 19th, 2015

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Dark matter guides growth of supermassive black holes

A new study of football-shaped collections of stars called elliptical galaxies provides new insights into the connection between a galaxy and its black hole. It finds that the invisible hand of dark matter somehow influences black hole growth.

Posted: Feb 18th, 2015

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