Astronomers think this active galactic core is creating a cosmic show reminiscent of the light and dark columns seen bursting through the clouds at sunset.
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A team of researchers traced the rays and resulting shadows back to a supermassive black hole at the center of IC 5063. Because the blackhole is gobbling up nearby material at a rapid rate, its food piles up around it like too much water going down a small drain. This cosmic whirlpool causes the circling material to heat up and glow around the otherwise black hole.
And here's another article:
Black hole of transparency around ESA′s new head | Science| In-depth reporting on science and
Want to get to know the European Space Agency's new director general? No problem. We'll get to that. But first, try finding out who else wanted the job.
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We've known since late November that Josef Aschbacher, the European Space Agency's director of Earth Observation, will replace Jan Wörner as ESA's director general by June 2021.
All that's needed now is a rubber stamp at a Ministerial Council meeting later this week (December 16-17). Anything could still happen, of course, but given the social/media fanfare, it's hard to see an alternative outcome.
Milky Way's central black hole may have zapped nearby red giant stars | Science News
Innumerable stars reside within 1.6 light-years of the Milky Way's central black hole. But this same crowded neighborhood has fewer red giants — luminous stars that are large and cool — than expected.
Now astrophysicists have a new theory why: The supermassive black hole, Sagittarius A*, launched a powerful jet of gas that ripped off the red giants' outer layers. That transformed the stars into smaller red giants or stars that are hotter and bluer , Michal Zajaček, an astrophysicist at the Polish Academy of Sciences in Warsaw, and colleagues suggest in a paper published online November 12 in the Astrophysical Journal .
A new particle, the ultralight boson, could swirl around black holes, releasing detectable
A hypothetical particle known as the ultralight boson could be responsible for our universe's dark matter .
While the ultralight boson isn't directlyobservable, it might clump up around black holes, triggering an exotic mechanism that causes it to explode — in a massive burst of gravitational waves. Even better: these gravitational waves may be detectable with the next generation of detectors.
We don't know what 85% of the mass in the universe is made of (thoughwe wish we did). We call it "dark matter," but it might as well be "invisible matter," because it doesn't interact with light in any way, shape or form. In fact, dark matter doesn't scatter, reflect, absorb, refract or really have anything at all to do with radiation.
While you're here, how about this:
Some black holes might have the superpower of not destroying everything
Superheroes may have to contend with cosmic phenomena sometimes, but actual objects in space can have powers of their own.
For all the enigma surrounding them, black holes can sometimes be boring. Mass and spin tell you everything you need to know about a black hole (since it has no charge), and once matter passes the event horizon, information is destroyed but only mass remains—but wait. That is the assumption of general relativity. Quantum theory insists that information can never be destroyed.
A Galaxy is Making New Stars Faster Than its Black Hole Can Starve Them for Fuel - Universe Today
A monster lurks at the heart of many galaxies – even our own Milky Way. This monster possesses the mass of millions or billions of Suns. Immense gravity shrouds it within a dark cocoon of space and time – a supermassive black hole. But while hidden in darkness and difficult to observe, black holes can also shine brighter than an entire galaxy. When feeding, these sleeping monsters awaken transforming into a quasar – one of the Universe's most luminous objects.
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As interstellar dust and gas is drawn toward a supermassive black hole, it spirals inward forming an "accretion disk". Eventually this material will fall through the "event horizon" – the boundary between the black hole and the rest of the Universe where matter and energy can no longer escape. The accretion disk is crushed by the black hole's gravity resulting in incredible friction, heat, and energy. The energy generated in the disk can outshine the entire surrounding galaxy.
Physics at tiniest scale could explain 'impossible' black holes | symmetry magazine
On May 21, 2019, a ripple in spacetime alerted scientists to what they thought was an impossible event: a collision between two black holes that should not have existed.
The LIGO and Virgo gravitational wave observatories had witnessed over a dozen black-hole collisions, but this merger was different. Both black holes were situated in the “mass gap,” a range of masses that, for black holes, should be forbidden.
At least, that’s what happens to medium-sized stars. In the cores of larger stars, high densities and temperatures trigger the creation of electron-positron pairs, resulting in a more powerful explosion called a pair-instability supernova.
The Strange Events at Our Milky Way's Supermassive Black Hole | The Daily Galaxy
In June of 2020, astronomers with the Hubble Space Telescope reported that Hubble's infrared eye revealed an enormous flash from Milky Way's black hole about 3.5 million years ago –the floodlight reached so far into space it illuminated a vast train of gas trailing the Milky Way's two prominent satellite galaxies: the Large Magellanic Cloud (LMC), and its companion, the Small Magellanic Cloud (SMC).The flash was undoubtedly witnessed by the early hominids on the African savannas as the
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