What do black holes eat? Scientists have demonstrated in the past that they're capable of "chowing down" on interstellar gas as well as stars. Now, astronomers using the European Southern Observatory's Very Large Telescope (VLT) have observed pockets of cooler gas hanging around some of the oldest galaxies in the universe, which also happen to be excellent "grub" for supermassive black holes at the center of said galaxies.
The Cosmic Dawn is a period of time during which the universe experienced a massive burst of radiation, following the formation of the very first stars. Scientists place it approximately a few hundred million years after the Big Bang that's theorized to have created the entire universe to begin with.
And here's another article:
Black hole: Brian Cox's chilling 'no escape' admission over Milky Way spacetime revealed |
In January this year, Professor Brian Cox appeared on the Joe Rogan Experience, where the host quizzed him on the black hole at the centre of the galaxy.
“They run out of their fuel and they start to collapse as gravity squashes them, if they are sufficiently massive, then there is nothing that can stop them.
“They collapse, as far as we know, to an infinitely dense point, we don’t know what happens right in the middle.
Supermassive black hole at the center of our galaxy may have a friend
The supermassive black hole that lurks at the center of our galaxy, called Sgr A*, has a mass of about 4 million times that of our Sun. A black hole is a place in space where gravity is so strong that neither particles or light can escape from it. Surrounding Sgr A* is a dense cluster of stars. Precise measurements of the orbits of these stars allowed astronomers to confirm the existence of this supermassive black hole and to measure its mass .
Figuring out the power of the black hole's outburst - Tech Explorist
Supermassive black holes gobble up everything around them. Billions of years ago, a black hole spewed out jets of plasma and created two large cavities 180 degrees from each other. The size of cavities helps estimate the energy of an asteroid impact by the size of its crater.
Likewise, using the size of these cavities, Michael Calzadilla, a graduate student at the MIT Kavli Institute for Astrophysics and Space Research (MKI), figure out the power of the black hole's outburst.
Not to change the topic here:
Historic Black Hole Image Named 2019 Scientific Breakthrough of the Year | The Weather Channel
Capturing the first ever image of a black hole—a historic feat that was previously deemed as impossible—has been named as the top scientific breakthrough of the year 2019 by the journal Science .
While scientists have studied black holes extensively for decades, they had not been able to picture it until April 10, 2019, and that is when planet Earth collectively saw what a black hole looks like for the very first time.
The gravity of a black hole is so strong that even light cannot escape its pull, and to capture an image of something that does not emit light is no easy task. Yet, the team from the Event Horizon Telescope Collaboration did just that.
Ramanujan's legacy used in signal processing, black hole physics - The Hindu
Examples of signals that are processed digitally include obvious ones like speech and music and more research-oriented ones such as DNA and protein sequences. All these have certain patterns that repeat over and over again and are called periodic patterns. For example, a DNA molecule is made up of a 4 bases (Adenine Guanine, Thymine and Cytosine).
Identifying and separating the periodic portion is much like using a sieve to separate particles of different sizes. A mathematical operation akin to a sieve is used to separate out the periodic regions in the signal. Some of the best-known methods to extract periodic components in signals involve Fourier analysis. Using Ramanujan Sums for this process is much less known. "A Ramanujan Sum is a sequence like c(1), c(2), c(3) ... This sequence itself repeats periodically...
Sci-Fi Disney Style: Remembering "The Black Hole" on its 40th Anniversary
"If you have never seen it, don't expect Star Wars . Watch it for being an ambitious Disney answer to Star Wars . Watch it from the perspective of it signaling a change at Disney at that time. Watch it for the incredible sets, visual effects and a storyline that mimics 20000 Leagues under the Sea , but set in space." — William Kallay, author of The Making of Tron
The Digital Bits and History, Legacy & Showmanship are pleased to present this retrospective commemorating the 40th anniversary of the release of The Black Hole , the Walt Disney Company's science-fiction and fantasy adventure directed by Gary Nelson ( Freaky Friday ) and featuring Oscar-nominated cinematography and visual effects.
Bloomberg - Are you a robot?
Happening on Twitter
"This is just the beginning of this kind of new era of observing event horizons." https://t.co/egGhjFkTFt ScienceNews (from Washington, DC) Mon Dec 23 04:00:00 +0000 2019
New research shows the link between the stars a galaxy forms and the monster black hole snacking in its center is s… https://t.co/V5VovIqdhN AstronomyMag (from Our tiny corner of the cosmos) Mon Dec 23 21:30:09 +0000 2019
NEW PAPER - we revisit an intermediate mass black hole trigger in @LIGO. We find it to be consistent with binary b… https://t.co/YnUph2gahH AstroKPJ (from Vanderbilt University ) Tue Dec 24 01:45:12 +0000 2019
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