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Black Hole

Black Hole

One of the first known black holes is more massive than once thought

Astronomers might need to adjust their expectations for black holes. According to the New York Times, an international research team has determined that Cygnus X-1, one of the first discovered black holes, is considerably more massive than once thought. The binary-system based hole was originally pegged at 'just' 15 solar…
bubmag
February 20, 2021
Black Hole

Famous black hole gets a massive update

An illustration of how astronomers observed the Cygnus X-1 system from different angles, using the EarthÕs orbit around the sun to measure the perceived movement of the system against the background stars. (International Centre for Radio Astronomy Research via The New York Times) NEW YORK: One of the biggest and…
bubmag
February 19, 2021
Black Hole

The first black hole ever discovered is more massive than we thought

Einstein first predicted the existence of black holes when he published his theory of general relativity in 1916, describing how gravity shapes the fabric of spacetime. But astronomers didn’t spot one until 1964, some 6,070 light-years away in the Cygnus constellation. Geiger counters launched into space detected cosmic x-rays coming…
bubmag
February 18, 2021
Black Hole

First black hole ever detected is more massive than we thought

New observations of the first black hole ever detected have led astronomers to question what they know about the Universe's most mysterious objects. Published today in the journal Science, the research shows the system known as Cygnus X-1 contains the most massive stellar-mass black hole ever detected without the use…
bubmag
February 18, 2021
Black Hole

Growing Inventory of Black Holes Offers a Radical Probe of the Cosmos

The dozens of black hole collisions observed by the LIGO and Virgo gravitational wave detectors are changing our view of the universe. Sakkmesterke/Science Source When the first black hole collision was detected in 2015, it was a watershed moment in the history of astronomy. With gravitational waves, astronomers were observing…
bubmag
February 17, 2021