Black Holes Can Get Really Big, And We Have No Idea Why--Illustration of Cygnus X-1, a stellar-mass black hole located 6070 ly away. (NASA/CXC/M.Weiss)

Black Holes Can Get Really Big, And We Have No Idea Why--Illustration of Cygnus X-1, a stellar-mass black hole located 6070 ly away. (NASA/CXC/M.Weiss)

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Cygnus X-1 is a black hole about 15 times the mass of the Sun in orbit with a massive blue companion star.  Astronomers used several telescopes including Chandra to study Cygnus X-1.  The combined data have revealed the spin, mass, and distance of this black hole more precisely than ever before.  Stephen Hawking lost a bet - originally placed in 1974 -- that Cygnus X-1 did not contain a black hole.

Cygnus X-1 is a black hole about 15 times the mass of the Sun in orbit with a massive blue companion star. Astronomers used several telescopes including Chandra to study Cygnus X-1. The combined data have revealed the spin, mass, and distance of this black hole more precisely than ever before. Stephen Hawking lost a bet - originally placed in 1974 -- that Cygnus X-1 did not contain a black hole.

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Esta es la siempre espectacular Nebulosa del Tulipán. Se encuentra a 8.000 años-luz de distancia de la Tierra, en la dirección de la constelación del Cisne. En su interior, además, está Cygnus X-1, un microquásar. #astronomia #ciencia

Esta es la siempre espectacular Nebulosa del Tulipán. Se encuentra a 8.000 años-luz de distancia de la Tierra, en la dirección de la constelación del Cisne. En su interior, además, está Cygnus X-1, un microquásar. #astronomia #ciencia

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Media by Bryon Gloden CISSP published February 17 2017 at 12:12AM

Media by Bryon Gloden CISSP published February 17 2017 at 12:12AM

Tulip Nebula, at least in the field seen from earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes. It is also called Sharpless 101 (Sh2-101) or the Cygnus Star Cloud because the nebula located in the constellation Cygnus.

Tulip Nebula, at least in the field seen from earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes. It is also called Sharpless 101 (Sh2-101) or the Cygnus Star Cloud because the nebula located in the constellation Cygnus.

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AGUJERO NEGRO (CYGNUS X-1) Björn Dahlem Desde el 19 de septiembre 2014 al 11 de enero 2015

AGUJERO NEGRO (CYGNUS X-1) Björn Dahlem Desde el 19 de septiembre 2014 al 11 de enero 2015

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Birth of famous black hole: Longstanding mysteries about object called Cygnus X-1 unraveled -- ScienceDaily

Birth of famous black hole: Longstanding mysteries about object called Cygnus X-1 unraveled -- ScienceDaily

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In the Milky Way there’s a single X-ray binary — a system consisting of a black hole capturing and heating material from an orbiting companion star — known as Cygnus X-1. But 30 million light-years away in the Whirlpool galaxy, M51, there are hundreds of X-ray points of light and a full 10 X-ray binaries.

In the Milky Way there’s a single X-ray binary — a system consisting of a black hole capturing and heating material from an orbiting companion star — known as Cygnus X-1. But 30 million light-years away in the Whirlpool galaxy, M51, there are hundreds of X-ray points of light and a full 10 X-ray binaries.

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