Stephen Hawking, one of the world’s most renowned theoretical physicists, provided profound insights on a range of subjects, including the potential impact of artificial intelligence (AI) on humanity. Even though he passed away in 2018, his perspectives continue to resonate in our increasingly AI-driven society. Today, as discussions on AI’s influence intensify, Hawking’s thoughts on ...
Black holes form natural time machines that allow travel to both the past and the future. But don’t expect to be heading back to visit the dinosaurs any time soon. At present, we don’t have spacecraft that could get us anywhere near a black hole. But, even leaving that small detail aside, attempting to travel ...
Researchers’ recent observations of a stellar-mass black hole called Cygnus X-1 reveal new details about the configuration of extremely hot matter in the region immediately surrounding the black hole. Matter is heated to millions of degrees as it is pulled toward a black hole. This hot matter glows in X-rays. Researchers are using measurements of ...
Using data from ESA’s Gaia astrometry mission, astronomers have identified the closest known black hole, less than 1,600 light-years away from Earth, and determined its mass. The black hole is orbiting a star similar to our Sun, and it was identified by tracking the star that the black hole is orbiting. It is expected to ...
The discovery of a so-called monster black hole that has about 12 times the Sun’s mass is detailed in a new Astrophysical Journal research submission, the lead author of which is Dr. Sukanya Chakrabarti, a physics professor at The University of Alabama in Huntsville (UAH). Dr. Chakrabarti, the Pei-Ling Chan Endowed Chair in the Department of Physics ...
For the first time, astronomers have encountered something exciting from archival data. The data from gravitational ripple observatories showed a merger of two black holes that came far away in space from each other. Interestingly, these two black holes born in different places found a way to merge. But how do they know these two ...
A team of astronomers in Japan has discovered for the first time a faint radio emission covering a giant galaxy with an energetic black hole at its center — quasar 3C 273. The radio emission is released from gas that is created directly by the central black hole. The result was obtained through high dynamic ...
After mobilizing more than 300 scientists and engineers to establish a network of synchronized telescopes that form an Earth-sized virtual telescope, the international Event Horizon Telescope Collaboration snapped the first-ever images of supermassive black holes. The first image of the black hole at the center of the Messier 87 galaxy was released in 2019. The latest image, ...
Using the European Southern Observatory’s Very Large Telescope (ESO’s VLT), astronomers have revealed the closest pair of supermassive black holes to Earth ever observed. The two objects also have a much smaller separation than any other previously spotted pair of supermassive black holes and will eventually merge into one giant black hole. Located in the ...
Primordial black holes created in the first instants after the Big Bang — tiny ones smaller than the head of a pin and supermassive ones covering billions of miles — may account for all of the dark matter in the universe. That’s the implication of a new model of the early universe created by astrophysicists ...
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