And here's another article:
Cosmic gas cloud blinks in sync with circling black hole -- ScienceDaily
Scientists have detected a mysterious gamma-ray heartbeat coming from a cosmic gas cloud. The inconspicuous cloud in the constellation Aquila is beating with the rhythm of a neighbouring precessing black hole, indicating a connection between the two objects, as the team led by DESY Humboldt Fellow Jian Li and ICREA Professor Diego F. Torres from the Institute of Space Sciences (IEEC-CSIC) reports in the journal Nature Astronomy .
The research team, comprising scientists from Germany, Spain, China and the U.S., rigorously analysed more than ten years of data from the US space administration NASA's Fermi gamma-ray space telescope, looking at a so-called micro quasar. The system catalogued as SS 433 is located some 15,000 lightyears away in the Milky Way and consists of a giant star with about 30 times the mass of our sun and a black hole with about 10 to 20 solar masses.
What happens if black holes fall into wormholes? A new way to find out. | Space
Astronomers think they might be able to detect black holes falling into wormholes using ripples in spacetime known as gravitational waves, but only if wormholes actually exist and such a scenario ever happened, a new study finds.
According to Einstein, who first predicted the existence of gravitational waves in 1916, gravity results from the way in which mass warps space and time. When two or more objects move within a gravitational field, they produce gravitational waves that travel at the speed of light , stretching and squeezing space-time along the way.
Thousands of Earthlike 'blanets' might circle the Milky Way's central black hole | Space
Not every supermassive black hole (SMBH) would host blanets. Morphing into a hard ball of matter is trickier around a black hole than in the protoplanetary disk around a young star. The swirling dust and gas around an SMBH is far less dense, and the corona of infalling matter at the edge of its event horizon might be so hot and bright that ice can't form anywhere in the whirling disk.
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Beyond the snow line, rocky blanets could form from progressively larger clumps in about 10 million years. If these rocky proto-blanets attracted enough gas, they'd eventually form gas giants. But none of that can happen without a thin film of ice on the dust grains. So dimmer, cooler SMBHs (like the one at the center of the Milky Way) are the most likely homes for these strange planets.
In case you are keeping track:
Black hole linked to gas cloud's 'heartbeat' 100 light years away
Rapid Changes Detected in a Black Hole May Explain Origin of the Most Energetic Radiation in the
Some of the most massive and distant black holes in the Universe emit an enormous amount of extraordinarily energetic radiation, called ‘gamma rays.’ This type of radiation occurs, for example, when mass is converted into energy during fission reactions that run nuclear reactors on Earth.
As a result of these collisions between light and matter, the energetic particles give almost all their momentum to the light rays and turn them into the gamma radiation that ends up reaching Earth.
Investigating Black Hole Formation | astrobites
Dwarf galaxies are believed by some to be time capsules, but instead of old records, they are thought to preserve the seeds of black holes formed in the early Universe. This is because most dwarf galaxies detected in the nearby Universe don’t show signs of interacting with their galactic neighbours, leaving these relatively low mass collections of gas, dust and stars to evolve in isolation.
Two formation mechanisms dominate discussion: either black holes formed from the collapse of early generations of stars, known as Pop III 's, or they formed from the direct collapse of gas and dust. If the former mechanism dominates then we would expect to find large numbers of low mass black holes, while the latter mechanism is predicted to produce a much smaller number of higher mass seeds.
End of the world: DeGrasse Tyson's plan to be ... by black hole for science
Discussing the most morbid of questions on a recent episode of his StarTalk Podcast, the 61-year-old was asked how the end of the world will come about.
He said: “For a little while, in the 20th century, once we had Einstein’s equation of gravity, the universe was either expanding or contracting within that.
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“Now we can ask whether we will expand forever, or will it one day slow down, stop, and contract.
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