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  1. Cygnus X-1 - Wikipedia

    • In 2006, Cygnus X-1 became the first stellar-mass black hole found to display evidence of gamma-ray emission in the very high-energy band, above 100 GeV. The signal was observed at the same time as a flare of hard X-rays, suggesting a link between the events. See more

    Overview

    Cygnus X-1 (abbreviated Cyg X-1) is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. It was discovered in 1964 during a rocket flight and is one of the … See more

    Discovery and observation

    Observation of X-ray emissions allows astronomers to study celestial phenomena involving gas with temperatures in the millions of degrees. However, because X-ray emissions are blocked by Earth's atmosphere, … See more

     
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  2. Cygnus X-1
    • According to 3 sources
    The first black hole ever discovered was Cygnus X-1, located within the Milky Way in the constellation of Cygnus, the Swan. Astronomers saw the first signs of the black hole in 1964 via gas it sucked away from a closely orbiting blue supergiant star.
    The first black hole known was Cygnus X-1, identified by several researchers independently in 1971. [9][10] Black holes of stellar mass form when massive stars collapse at the end of their life cycle. After a black hole has formed, it can grow by absorbing mass from its surroundings.
    The first object discovered widely accepted as a black hole is known as Cygnus X-1, a discovery made by Paul Murdin and Louise Webster in 1971. As its name suggests, it’s an X-ray source in the constellation of Cygnus.
     
  3. Who really discovered black holes? - BBC Science Focus Magazine

  4. A brief history of black holes | Astronomy.com - Astronomy …

  5. Scientists revisit the 1st black hole they ever discovered and …

  6. Black hole - Wikipedia

    The first black hole known was Cygnus X-1, identified by several researchers independently in 1971. [9] [10] Black holes of stellar mass form when massive stars collapse at the end of their life cycle. After a black hole has formed, it …

  7. All you need to know about the history of black holes

    Apr 10, 2019 · Hinted at as early as the 1780s and predicted by Einstein’s general theory of relativity, they didn’t get the name we know today until the 1960s. Bizarre beasts that squash gobs of matter...

  8. First black hole ever found is more massive than …

    Feb 18, 2021 · The first black hole ever discovered is more massive than previously thought. Cygnus X-1 is the heaviest stellar black hole observed without using gravitational waves

  9. How Was Cygnus X-1, the First Black Hole, Discovered?

    The first mention of a black-hole-like object was in the late 1700s when John Mchill and Pierre-Simon Laplace (independent of each other) talked about dark stars, whose gravity would be so large as to prevent any light from leaving …

  10. Timeline of black hole physics - Wikipedia

  11. How black holes were first discovered

    The first prediction of anything resembling a black hole goes all the way back to John Michell, over 200 years before black holes were first discovered, according to astrophysicist Becky Smethurst. The centre of the Milky Way, our home …

  12. Interview with Paul Murdin, co-discoverer of the first …

    In 1971, astronomers Paul Murdin and Louise Webster discovered the first ever clear identification of a black hole in Cygnus X-1, a powerful source of x-rays. Paul Murdin and Louise Webster made the discovery using Isaac Newton …

  13. Cygnus X-1 was the First Black Hole Ever Found. New …

  14. Black holes: Everything you need to know | Space

  15. The first black hole discovered is much more massive than we …

  16. Researchers discover oldest known black hole that existed not …

  17. NASA Telescopes Discover Record-Breaking Black Hole

  18. When was the first black hole discovered? - Socratic

  19. The top 7 black hole discoveries from 2024 | Space

  20. Scientists discover oldest ever black hole and say it could explain ...

  21. Astronomers Spot the Oldest Black Hole Ever Seen, Shedding …

  22. The Earliest Supermassive Black Hole Ever Found Has Just

  23. First ever ‘triple black hole’ discovered as scientists ... - LADbible

  24. 10 mind-blowing black hole discoveries from 2024 | Live Science

  25. First-Ever Binary Stars Spotted Near the Milky Way’s …

  26. Supermassive black hole is most distant ever found, as Webb …

  27. First ever binary star found near our galaxy’s supermassive black …