Monday, November 30, 2020

Galaxy Survives Black Hole’s Feast – For Now | NASA

Publisher: NASA
Date: 2020-11-25T13:19-05:00
Twitter: @11348282
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Were you following this:

Galaxy surviving black hole forces | wtsp.com

While black holes usually take the upper hand in consuming galaxies, NASA says one more than 5.25 billion light-years away seems to be holding out.

NASA says it appears to be surviving the ravenous forces through birthing new stars-- about 100 the size of the sun each year to be exact.

The discovery was brought to light by NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) telescope on an airplane, according to a press release.

Publisher: wtsp.com
Date: 11/30/2020 3:15:34 AM
Twitter: @10TampaBay
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Caught on tape: NASA posts about black hole that is about '8 times the mass of the Sun' - it s

Black holes are one the most fascinating, intriguing, and strange objects in the Universe. If you resonate with that statement, then chances are that this post by NASA about said astronomical object would leave you feeling excited and captivated.

Taking to Twitter, the space agency shared how the scientists have captured a “stellar-mass black hole” on camera. They also added that it is “hurling hot material into space.”

The black hole and its companion star make up a system called MAXI J1820+070, describes the blog. It is located about 10,000 light-years from Earth.

Publisher: Hindustan Times
Date: 2020-11-28T22:58:13 05:30
Twitter: @httweets
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Hubble Catches Possible 'Shadow Play' of the Disk Around a Black Hole

Black holes are the universe's monsters: voracious eating machines that swallow anything that ventures near them.

These compact behemoths pull stars and gas into a disk that swirls around them. The feeding generates a prodigious amount of energy, producing a powerful gusher of light from superheated infalling gas.

These disks are so far away that it's nearly impossible to discern any detail about them. But by a quirk of alignment, astronomers may be getting a glimpse of the structure of the disk around the black hole in nearby galaxy IC 5063. The Hubble Space Telescope has observed a collection of narrow bright rays and dark shadows beaming out of the blazingly bright center of the active galaxy.

Publisher: HubbleSite.org
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Quite a lot has been going on:

Black Holes Aren’t As Bad As You Think | WIRED

Few things in the universe have a worse reputation than black holes, but physicist Janna Levin is hoping to change that with her new book The Black Hole Survival Guide .

“People think of black holes as dense objects, and they get caught up in the ‘monster truck’ aspect, that they destroy things,” Levin says in Episode 442 of the Geek’s Guide to the Galaxy podcast. “And I think that it detracts from some of the more eerie and austere and gorgeous aspects of this very strange phenomenon.”

Publisher: WIRED
Author: Geek Guide to the Galaxy
Twitter: @wired
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Black Friday: NASA gets into shopping spirit with 'Black Hole Friday' | Science | News

Black holes are tears in the fabric of space and time which have been ripped by the collapse of a giant star.

The gravitational pull of these entities is so strong not even light - which is the fastest thing in the entire Universe - can escape.

They completely break the laws of physics with their singularity at the centre, which is a one-dimensional point where gravity becomes infinite and space and time become curved.

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A tidal disruption is when a star passes too close to the event horizon - the point of no return in relation to a black hole's gravitational clutch.

Publisher: Express.co.uk
Date: 2020-11-27T16:28:06 00:00
Author: Sean Martin
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Rethinking black holes: New theory says that something that goes into one won’t be gone for

ROCHESTER, N.Y. (WROC) — One of the universe’s most intriguing mysteries is the black hole. Now, one of its mysteries might be unraveling.

Since I’m no astrophysicist, I’m going to do my best to keep this simple. But I did talk to one person who is an expert on black holes; you might remember him from this story regarding a Nobel Prize win for work on the “supermassive black hole” in the center of our galaxy, Don Figer.

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Publisher: RochesterFirst
Date: 2020-11-10T21:38:01 00:00
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Black hole expert calls for Einstein general relativity rethink after physics

At the centre of a black hole, as described by general relativity, may lie a gravitational singularity, a region where the spacetime curvature becomes infinite.

That possibility was explored during a recent episode of Neil deGrasse Tyson’s StarTalk podcast, where a question was sent in for guest and astrophysicist Janna Levin.

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“I think most of us suspect that the singularity is general relativity signalling its breakdown.

Publisher: Express.co.uk
Date: 2020-11-24T11:57:00 00:00
Author: Callum Hoare
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