While you're here, how about this:
Chandra Catches Relativistic Jets from Stellar-Mass Black Hole | Astronomy | Sci-News.com
Astronomers using NASA's Chandra X-ray Observatory have observed a pair of relativistic jets blasting away from a black hole in the binary system MAXI J1820+070.
In this illustration, MAXI J1820+070 pulls material off a neighboring star and into an accretion disk; above the disk is a region of subatomic particles called the corona. Image credit: Aurore Simonnet / NASA's Goddard Space Flight Center.
MAXI J1820+070 , also known as ASASSN-18ey, is a binary system located about 10,000 light-years away in the constellation of Ophiuchus.
Magnetic fields force new perspective on Milky Way's black hole
Using its newest infrared instrument to study celestial dust grains, which align perpendicular to magnetic field lines, SOFIA was able to produce detailed maps of our galactic center, showing the behavior of these otherwise invisible magnetic fields around the black hole.
"There are still aspects of our galaxy's black hole that we can't explain with gravity alone," said Joan Schmelz, director at the Universities Space Research Association, in Columbia, MD, and SOFIA senior science advisor. "Magnetic fields may be able to help solve these mysteries."
Why it's better to fall into a big black hole, and other bizarre facts | New Scientist
An English clergyman called John Michell first speculated in the 18th century what would happen if you had a star so massive that its escape velocity exceeded light speed. Back then, however, most people thought of light as waves, and nobody really understood how waves could be trapped by gravity. So the whole idea of dark stars disappeared for about a century – until we entered the world of Albert Einstein .
Einstein was a rock star of physics back in the day. His general theory of relativity is a geometric theory of gravity. It says that mass curves space, or to be more accurate mass-energy (because Einstein had demonstrated these were equivalent with his equation E = mc 2 ), curves a unified space-time , creating what we call gravity.
Quite a lot has been going on:
Astronomers Have Filmed a Black Hole Blasting Out Jets Close to The Speed of Light
The Chandra X-Ray Observatory has spotted a distant black hole shooting out jets of material, at close to the speed of light. No worries, this beast is about 10,000 light years away from us. It's more of a spectacle than a danger.
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I know what you might be thinking. Some version of "I thought nothing could escape a black hole?" You're right, nothing can. But this material isn't actually coming out of the black hole. It's coming from the material circling around the black hole and being heated by that motion.
Watch two jets burst from a black hole at 80% the speed of light
At the center of galaxies, massive black holes lurk in the shadows and, usually, they swallow up material that dares to come near. However that's not always the case, new images captured by astronomers show what happens when a black hole acts as a gas fountain.
Astronomers have recently caught a startling glimpse at two hot gas jets bursting from a stellar-mass black hole at 80 percent the speed of light, creating a hypnotic cosmic flare that further fuels our fascination by these massive beings.
Galactic star formation and supermassive black hole masses
The astronomers find that galaxies in the local universe with more than about ten billion masses of stars will indeed tend to quench star production once the energy in the winds from black hole accretion becomes larger than the gravitational energy in the gas, and that this tends to happen when the mass of the supermassive black hole exceeds about one hundred and sixty million solar masses.
Australian universities facing $16bn black hole as Covid-19 student numbers plummet | Australia
As the government has indicated it will extend further assistance to the tourism, arts and entertainment, and construction industries – other sectors hard hit by the global pandemic are lining up to call for more support.
A report by Social Ventures Australia and the Centre for Social Impact estimates that a 20% fall in revenue could put nearly 250,000 charity workers out of a job and see as many as one in six charities at high risk of closing down.
Happening on Twitter
At the heart of our Milky Way galaxy is a supermassive black hole. About 3.5 million years ago, it unleashed a bu… https://t.co/xXPBRPUVY8 NASAHubble (from Goddard Space Flight Center) Tue Jun 02 15:33:31 +0000 2020
Intense flash from Milky Way's black hole illuminated gas far outside of our galaxy @hubble_space @AAS_Publishing https://t.co/5ky5Ga6OXt physorg_com Tue Jun 02 18:12:41 +0000 2020
Magnetic fields force new perspective on Milky Way's black hole https://t.co/iujRmzA27Q physorg_com Tue Jun 02 18:17:29 +0000 2020
The area around the center of our Milky Way galaxy is dominated by gravity, but magnetic fields may be strong enoug… https://t.co/ZX80Pi9UjT SOFIAtelescope (from California) Tue Jun 02 16:14:43 +0000 2020
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