A year ago a team of radio astronomers startled the world with the first photograph of a black hole , lurking like the eye of Sauron in the heart of a distant galaxy. Now it appears there was more hiding in that image than we had imagined.
When you point a telescope at a black hole, it turns out you don't just see the swirling sizzling doughnut of doom formed by matter falling in. You can also see the whole universe. Light from an infinite array of distant stars and galaxies can wrap around the black hole like ribbons around a maypole, again and again before coming back to your eye, or your telescope.
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Last year, we finally photographed a black hole. Now what? | Popular Science
Astronomers Observe Blasting Supermassive Black Hole Jets From The Early Universe
In the far reaches of the Universe, astronomers have managed to capture a rare interaction. As a supermassive black hole ravenously slurps down matter around it, it's sending out jets of plasma - pushing into and heating the gas in the galaxy around it.
This is difficult to capture at the best of times, but this case was a particularly impressive feat. The galaxy in question is a whopping 11 billion light-years away - when the Universe was less than 3 billion years old.
Black hole 'subrings' could be seen by putting a telescope on the Moon – Physics
Adding a space telescope to the earthbound Event Horizon Telescope (EHT) should reveal the delicate series of light rings surrounding a supermassive black hole – according to a team of astrophysicists in the US. As well as providing more precise values for the mass and spin of a black hole, observing these "subrings" could also be a benchmark test of long-baseline interferometry using telescopes on Earth and in space.
In April 2019, scientists working on the EHT observed a glowing ring of light surrounding the supermassive black hole that lies at the heart of the M 87 galaxy. This first observation allowed the EHT team to determine the mass of the black hole to within 10% of about 6.5 billion solar masses. EHT scientists we also able to work-out the direction of rotation (spin) of the black hole.
Quite a lot has been going on:
ALMA resolves gas impacted by young jets from supermassive black hole -- ScienceDaily
Astronomers obtained the first resolved image of disturbed gaseous clouds in a galaxy 11 billion light-years away by using the Atacama Large Millimeter/submillimeter Array (ALMA). The team found that the disruption is caused by young powerful jets ejected from a supermassive black hole residing at the center of the host galaxy. This result will cast light on the mystery of the evolutionary process of galaxies in the early Universe.
It is commonly known that black holes exert strong gravitational attraction on surrounding matter. However, it is less well known that some black holes have fast-moving streams of ionized matter, called jets. In some nearby galaxies, evolved jets blow off galactic gaseous clouds, resulting in suppressed star formation. Therefore, to understand the evolution of galaxies, it is crucial to observe the interaction between black hole jets and gaseous clouds throughout cosmic history.
M87's Gargantuan Black Hole --"Unveils Light of the Entire Universe" (Weekend
Home » Black Holes » M87’s Gargantuan Black Hole –“Unveils Light of the Entire Universe” (Weekend Feature)
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On April 10, 2019, the Event Horizon Telescope (EHT) team of radio astronomers produced the first photograph of the M87 Galaxy’s black hole the size of our solar system described by astronomers as the “gates of hell and the end of spacetime.” The now iconic image captured light from the entire universe wrapping around the object in a nested series of rings.
There Are Infinite Rings of Light Around Black Holes. Here's How We Could See Them
A year ago, history was made. The long, painstaking work of scientists around the globe produced the very first direct image of the event horizon of a black hole , a supermassive monster called M87* 55 million light-years away. That glorious, golden, blurry image confirmed many of our ideas about black holes .
But the science didn't stop when the image came in. A team of scientists has now performed calculations based on what we learnt from M87* combined with the predictions of general relativity , to further predict how one day we could see this objects in much closer detail.
French football stares at financial black hole with broadcasters set to hold back payments
Paris (AFP) - The financial crisis facing football as a result of the coronavirus pandemic has been laid bare in France, where a decision to withhold payments due as part of a broadcast deal for Ligue 1 matches is set to leave clubs reeling.
Canal Plus, the pay TV giant and long-time broadcaster of France's top flight, stated its intention to hold back a scheduled 110 million-euro ($121 million) payment in a letter to the French league revealed by the country's leading sports daily, L'Equipe.
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