Brad Cox, Creator of Objective-C Programming Language, Dies At 76

We have learned that Brad Cox, computer scientist known mostly for creating the Objective-C programming language with his business partner Tom Love, died on January 2, 2021 at his residence. He was 76. From a Legacy.com post: Brad was born on May 2, 1944 in Fort Benning, Georgia, to the late Nancy Hinson Cox and Dewey McBride Cox of Lake City,…

Monster black hole spews energy as regularly as Yellowstone’s ‘Old Faithful’

Regular energy flares that emerge from galaxy ESO 253-3 are produced by a black hole about 20 times larger than the one at the center of the Milky Way. Source: https://www.livescience.com/old-faithful-black-hole.html

Researchers discover the earliest supermassive black hole and quasar in the universe

Nearly every galaxy hosts a monster at its center—a supermassive black hole millions to billions times the size of the Sun. While there’s still much to learn about these objects, many scientists believe they are crucial to the formation and structure of galaxies. What’s more, some of these black holes are particularly active, whipping up stars, dust and gas into glowing…

A new record for the most distant quasar

Astronomers have a new measurement for the distance of quasar J0313-1806, making it the new record-holder for the most distant quasar known. We’re seeing it just 670 million years after the Big Bang, or more than 13 billion light-years away. Source: https://earthsky.org/space/new-record-most-distant-quasar-black-hole-j0313-1806…

Most distant quasar may help us solve how enormous black holes form

Astronomers spotted a quasar containing a supermassive black hole about 13 million light years away, which may shed light on how these colossal black holes form Source: https://www.newscientist.com/article/2264663-most-distant-quasar-may-help-us-solve-how-enormous-black-holes-form/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

Most distant quasar discovered sheds light on how black holes grow

A team of astronomers led by the University of Arizona has observed a luminous quasar 13.03 billion light-years from Earth—the most distant quasar discovered to date. Dating back to 670 million years after the Big Bang, when the universe was only 5% its current age, the quasar hosts a supermassive black hole equivalent to the combined mass of 1.6 billion suns….

Black holes leak energy when they eat plasma near the event horizon

When magnetic fields around a black hole reconnect, they can slow down plasma particles near the event horizon, which cause the black hole to lose energy when it swallows them Source: https://www.newscientist.com/article/2264389-black-holes-leak-energy-when-they-eat-plasma-near-the-event-horizon/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

A Giant Black Hole Keeps Evading Detecting and Scientists Can’t Explain It

“An enormous black hole keeps slipping through astronomers’ nets…” reports Space.com: The big galaxy at the core of the cluster Abell 2261, which lies about 2.7 billion light-years from Earth, should have an even larger central black hole — a light-gobbling monster that weighs as much as 3 billion to 100 billion suns, astronomers estimate from the galaxy’s mass. But the…

A giant black hole keeps evading detection and scientists can’t explain it

The big galaxy at the core of the cluster Abell 2261 should harbor a supermassive black hole that weighs as much as 3 billion to 100 billion suns. But astronomers can’t find it. Source: https://www.livescience.com/abell-2261-supermassive-black-hole-missing.html