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Physicists create new model of ringing black holes(图)     振铃黑洞 新模型 引力波       font style='font-size:12px;'> 2023/5/17
When two black holes collide into each other to form a new bigger black hole, they violently roil spacetime around them, sending ripples called gravitational waves outward in all directions. Previous ...
Could we harness energy from black holes?     harness energy  black holes       font style='font-size:12px;'> 2021/1/28
A remarkable prediction of Einstein's theory of general relativity -- the theory that connects space, time and gravity -- is that rotating black holes have enormous amounts of energy available to be t...
When the most massive stars die, they collapse under their own gravity and leave behind black holes. When stars that are a bit less massive die, they explode in supernovas and leave behind dense, dead...
Young galaxies blaze with bright new stars forming at a rapid rate, but star formation eventually shuts down as a galaxy evolves. A new study, published January 1, 2018, in Nature, shows that the mass...
How Strong Are Black Holes Really?(图)     Strong  Black Holes       font style='font-size:12px;'> 2017/12/19
Black holes are famous for their muscle: an intense gravitational pull known to gobble up entire stars and launch streams of matter into space at almost the speed of light.It turns out the reality may...
"We have known about the existence of these clumps of material streaming along black hole jets, and that they move close to the speed of light, but not much is known about their internal structure or ...
Astronomers like to say we are the byproducts of stars, stellar furnaces that long ago fused hydrogen and helium into the elements needed for life through the process of stellar nucleosynthesis.As the...
Using the supersharp radio “vision” of the National Science Foundation’s Very Long Baseline Array (VLBA), astronomers have made the first detection of orbital motion in a pair of supermassive black ho...
New information gleaned from gravitational wave observations is helping scientists understand what happens when massive stars die and transform into black holes. Rochester Institute of Technology res...
Peering into Black Holes Using an Earth-sized Telescope     Peering  Black Holes  Earth-sized Telescope       font style='font-size:12px;'> 2017/4/27
Turning the Earth into one giant telescope by coordinating observations from instruments arrayed around the world, teams of radio astronomers are aiming their telescopes for the next 10 days at the th...
On Dec. 26, 2015 at 03:38:53 UTC, scientists observed gravitational waves -- ripples in the fabric of spacetime -- for the second time. The gravitational waves were detected by both of the twinLaser ...
There may be fewer pairs of supermassive black holes orbiting each other at the cores of giant galaxies than previously thought, according to a new study by astronomers who analyzed data from the Nati...
New Support For Converging Black Holes(图)     Converging Black Holes       font style='font-size:12px;'> 2015/9/25
Earlier this year, astronomers discovered what appeared to be a pair of supermassive black holes circling toward a collision so powerful it would send a burst of gravitational waves surging through th...
Neutron Stars Strike Back at Black Holes in Jet Contest     Neutron Stars Strike Back  Black Holes  Jet Contest       font style='font-size:12px;'> 2015/8/13
Some neutron stars may rival black holes in their ability to accelerate powerful jets of material to nearly the speed of light, astronomers using the Karl G. Jansky Very Large Array (VLA) have discove...
B-roll of the South Pole Telescope is available from NSF's Dena Headlee, dheadlee@nsf.gov / (703) 292-7739.Astronomers building a globe-spanning virtual telescope capable of photographing the "event h...

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