Black Hole

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An exotic type of dark matter could explain some of the characteristics of our galaxy’s central supermassive black hole, but many cosmologists are leery of the idea...Read More

An illustration of a tidal disruption event in which a star is devoured by a black hole. (Image credit: ESA/C. Carreau) Astronomers have discovered that an unusual optical flare is the result of a star being ripped apart and devoured by a black hole — and what really sets this…

Prepare Yourself for Black Hole Fishing SDG Games has announced that Black Hole Fishing will launch on Steam on April 7, bringing a wildly unconventional twist to the world of incremental games. Instead of patiently casting a line, players build a booming fishing operation powered by a literal cosmic anomaly.…

Article content And even the most critical projects might need to be rejected or delayed. Article content Edmonton has typically borrowed money to pay for them, but that is a dicey proposition at the moment because the city is already carrying a high debt load. Debt repayment is the third biggest line item in the city’s…

Scientists at Columbia University working with Breakthrough Listen, a research initiative focused on searching for signs of civilizations beyond Earth, have reported new findings from the Breakthrough Listen Galactic Center Survey. This project represents one of the most sensitive radio investigations ever carried out to search for pulsars in the…

Pulsars are highly magnetized, rapidly rotating neutron stars that emit bursts of electromagnetic radiation from their poles at regular intervals as they spin. In a way, they’re kind of like cosmic lighthouses, blinking in space. Now, according to a new study published in The Astrophysical Journal, there could be a…

When a massive star reaches the end of its lifetime, its core collapses and releases neutrinos that drive a shock into the outer layers (the stellar envelope). A sufficiently strong shock ejects the envelope, producing a supernova. If the shock fails to ...Read More

A supermassive black hole that tore apart a star years ago is now blasting out energy that rivals a gamma-ray burst, potentially making it one of the most powerful single events ever detected in the universe. Instead of fading after its initial flare, the system has continued to brighten, defying…

Physicists at the University of Massachusetts Amherst argue that an ultra-high-energy neutrino detected by the KM3NeT experiment could be the signature of an explosion of a ‘quasi-extremal primordial black hole,’ pointing toward new physics beyond the Standard Model. The KM3NeT experiment has recently observed a neutrino with an energy around…