Could the famed "Big Bang" theory need a revision? A group of theoretical physicists suppose the birth of the universe could have happened after a four-dimensional star collapsed into a black hole and ejected debris.
Astronomy
Sep 19, 2013
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The normally quiet neighborhood around the massive black hole at the center of our Milky Way Galaxy is being invaded by a gas cloud that is destined in just a few years to be ripped, shredded and largely eaten.
Astronomy
Dec 14, 2011
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(PhysOrg.com) -- In the last few years astronomers have observed that in some extrasolar systems the star is spinning one way and the planet, a "hot Jupiter," is orbiting the star in the opposite direction. A Northwestern ...
Astronomy
May 11, 2011
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(PhysOrg.com) -- Going against the grain may turn out to be a powerful move for black holes. New research suggests supermassive black holes that spin backwards might produce more ferocious jets of gas. The results have broad ...
Astronomy
Jun 1, 2010
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A University of Alberta professor has revealed the workings of a celestial event involving binary stars that results in an explosion so powerful it ranks close to Supernovae in luminosity.
Astronomy
Jan 24, 2013
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Comets and asteroids preserve the building blocks of our Solar System and should help explain its origin. But there are unsolved puzzles. For example, how did icy comets obtain particles that formed at high temperatures, ...
Space Exploration
Jul 25, 2012
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For the first time, astronomers have captured images that show a star consuming one of its planets. The star, named ZTF SLRN-2020, is located in the Milky Way galaxy, in the constellation Aquila. As the star swallowed its ...
Astronomy
May 13, 2023
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In 1961, after NASA shot Alan Shepard into space, a 9-year-old boy named Steve Hawley asked his mother to buy him a dime-store telescope.
Space Exploration
Apr 27, 2014
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The race is on to solve the mystery of dark energy, the unknown force that is causing the universe to expand faster and faster. It's one of the biggest open questions in cosmology, but now a handful of high-profile projects ...
Astronomy
Aug 16, 2013
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Theoretical astrophysicist Avi Loeb has a pretty good idea about how the universe's first galaxies formed, but he can't wait to see if his theories are right.
Astronomy
Mar 1, 2013
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