Astronomers have taken the first ever image of a black hole

Discussion in 'The Snug' started by Chippy_Tea, Apr 10, 2019.

Help Support The Homebrew Forum UK by donating:

  1. Apr 10, 2019 #1

    Chippy_Tea

    Chippy_Tea

    Chippy_Tea

    Administrator. Administrator

    Joined:
    Mar 17, 2013
    Messages:
    24,963
    Likes Received:
    5,265
    Location:
    South Cumbria.
    Its a Monster, Its 40 billion km across, it has a mass 6.5 billion times that of the Sun and luckily for us its 500 million trillion km away.



    Astronomers have taken the first ever image of a black hole, which is located in a distant galaxy.

    It measures 40 billion km across - three million times the size of the Earth - and has been described by scientists as "a monster".

    The black hole is 500 million trillion km away and was photographed by a network of eight telescopes across the world.

    Details have been published today in Astrophysical Journal Letters.

    Prof Heino Falcke, of Radboud University in the Netherlands, who proposed the experiment, told BBC News that the black hole was found in a galaxy called M87.

    "What we see is larger than the size of our entire Solar System," he said.

    "It has a mass 6.5 billion times that of the Sun. And it is one of the heaviest black holes that we think exists. It is an absolute monster, the heavyweight champion of black holes in the Universe."

    https://www.bbc.co.uk/news/science-environment-47873592


    What is a black hole?
    • A black hole is a region of space from which nothing, not even light, can escape
    • Despite the name, they are not empty but instead consist of a huge amount of matter packed densely into a small area, giving it an immense gravitational pull
    • There is a region of space beyond the black hole called the event horizon. This is a "point of no return", beyond which it is impossible to escape the gravitational effects of the black hole

    [​IMG]
     
  2. Apr 10, 2019 #2

    Clint

    Clint

    Clint

    Hammered.....

    Joined:
    Jun 29, 2016
    Messages:
    6,445
    Likes Received:
    2,931
    Location:
    North Wales
    I am amazed how they arrived at their conclusions.
    Are they based on physics as exist on Earth as the bit about large amounts of matter squeezed into a tiny space escapes my comprehension as it describes a non earth situation...unless my Mrs wardrobes count...
     
  3. Apr 10, 2019 #3

    An Ankoù

    An Ankoù

    An Ankoù

    Landlord.

    Joined:
    Feb 2, 2019
    Messages:
    986
    Likes Received:
    391
    Location:
    Brittany, France
    If nothing, not even light, can escape the gravitational attraction of a black hole then they are necessarily in a state of contraction and are probably examples of the "big crunch" of the big bang / big crunch theory of the origin of the universe ie- nascent universes themselves. I only know this through imbibing of some of the more psychotropic recipes in Buhners "Sacred and Herbal Healing Beers". Does this physics exist on Earth? Doubtful- singularities of such internal density tend to "wrap" time and space around them so we don't really know what or when is going on- Startreck Voyager (can't remember which episode),
     
  4. Apr 10, 2019 #4

    chesters-mild

    chesters-mild

    chesters-mild

    Member Supporting Member

    Joined:
    Feb 21, 2015
    Messages:
    366
    Likes Received:
    142
    Location:
    Hulme, Manchester, m15 5fh
    Well...that's one donut I don't fancy eating. But seriously it's a superb piece of work by the teams involved
    Well done!
    Cheers
     
  5. Apr 10, 2019 #5

    phildo79

    phildo79

    phildo79

    Member

    Joined:
    Feb 5, 2014
    Messages:
    513
    Likes Received:
    122
    Location:
    N. Ireland
    Fair play, it's big. 40 billion km across - I wonder what that is in inches.
     
  6. Apr 10, 2019 #6

    Nicks90

    Nicks90

    Nicks90

    Landlord.

    Joined:
    Jul 5, 2017
    Messages:
    551
    Likes Received:
    186
    Location:
    NULL
    We can create black holes on earth, just tiny ones that can't be sustained - check out Cern.
    Although technically they aren't black holes, essentially they are doing the same thing as a black hole does, with the goal of watching what comes out when in disintegrates to observe new particle physics.

    Black holes are actually pretty simple things.
    Look at it this way.
    You have 'normal' matter like what you and me is made of. Protons, neutrons, electrons and various energy waves making up visible and invisible light.
    Then you have stars that are dense and hot enough in their core to overcome nuclear forces and smash themselves to bits to form ever heavier atoms and release energy waves (light and radiation)
    When a star dies it collapses.
    3 things can happen.
    1) it isn't a big star and the core collapses into tightly packed regular atoms made up of neutrons, protons and electrons. Regular matter - Called a white dwarf
    2) it's a big star and the core goes supernova and the remnants collapses with enough remaining mass to overcome the atoms and literally pushes all the protons and electrons together to make neutrons, basically overcoming the 'walls' of those subatomic particles and squishing them into one. You end up with a neutron star which is essentially one enormous atom made up of nothing but neutrons.
    3) a reaaaally big star collapses and goes supernova. But the core is still so big that not only can it compress all the atoms together, squeeze all the electrons and protons together to make neutrons, but it can even squeeze all the neutrons together and forms a black hole. This is where it does get a bit weird and theoretical. In essence a black hole is actually just one new sub atomic particle....a super sized neutron
    But to overcome the forces required to squash electrons and protons togethrr to form neutrons, squash neutrons together hard enough that they break down further, the density (and hence gravity) has to be so large that all energy gets sucked in. Don't forget light is just a particle. Just like everything else.
     
    Last edited: Apr 10, 2019
    Chippy_Tea likes this.
  7. Apr 10, 2019 #7

    uDicko

    uDicko

    uDicko

    Regular.

    Joined:
    Dec 31, 2018
    Messages:
    323
    Likes Received:
    103
    Location:
    Sheffield
    40000000000 kilometres =
    1.575 × 1015 inches
     
  8. Apr 10, 2019 #8

    phildo79

    phildo79

    phildo79

    Member

    Joined:
    Feb 5, 2014
    Messages:
    513
    Likes Received:
    122
    Location:
    N. Ireland
    You are missing some zeroes. A true billion has 12 of 'em.

    Also, 1,598.62 inches? 44.4 yards! Brexit has hit the metric system HARD!
     
  9. Apr 11, 2019 #9

    An Ankoù

    An Ankoù

    An Ankoù

    Landlord.

    Joined:
    Feb 2, 2019
    Messages:
    986
    Likes Received:
    391
    Location:
    Brittany, France
    Ah, yes. The tiny ones. I have one nestling on a cotton-wool swab in a jam jar on the top shelf in my garage; just next to my Higgs Boson and fragment of the True Cross. I feel their presence wards off contamination and infections. So far, so good.
     
    Soyyojuli likes this.
  10. Apr 11, 2019 #10

    dad_of_jon

    dad_of_jon

    dad_of_jon

    Beer designer

    Joined:
    Jan 5, 2015
    Messages:
    3,395
    Likes Received:
    1,412
    Location:
    Swansea
    so thats where all my hb disappears to! - That would explain the weird space time dilution I experience in my shed ashock1
     
    Clint and An Ankoù like this.
  11. Apr 11, 2019 #11

    Cwrw666

    Cwrw666

    Cwrw666

    Landlord.

    Joined:
    Aug 22, 2014
    Messages:
    2,084
    Likes Received:
    965
    Location:
    North Pembs.
    Not sure why taking a photo, no matter how difficult to do, would be described as an `experiment'. Also since when did astronomers start measuring distances in millions of trillions of km? Give me it in light years.
     
  12. Apr 11, 2019 #12

    phildo79

    phildo79

    phildo79

    Member

    Joined:
    Feb 5, 2014
    Messages:
    513
    Likes Received:
    122
    Location:
    N. Ireland
    Or at lease in parsecs or megaparsecs. Come on guys, give us units of distance that we can at least wrap our heads around!
     
    Soyyojuli likes this.
  13. Apr 11, 2019 #13

    foxbat

    foxbat

    foxbat

    Junior Member

    Joined:
    Nov 24, 2013
    Messages:
    1,604
    Likes Received:
    734
    Location:
    Essex, UK
    They don't. They dumb it down for the media. On the BBC we're lucky we didn't get it in double-decker buses or olympic swimming pools.
     
    Chippy_Tea and uDicko like this.
  14. Apr 11, 2019 #14

    Gunge

    Gunge

    Gunge

    Landlord. Supporting Member

    Joined:
    Nov 5, 2016
    Messages:
    2,996
    Likes Received:
    1,678
    Location:
    NULL
    Are they caused by global warming?
     
  15. Apr 11, 2019 #15

    strange-steve

    strange-steve

    strange-steve

    Quantum Brewer

    Joined:
    Apr 8, 2014
    Messages:
    3,336
    Likes Received:
    1,962
    Location:
    Galle Crater, Mars
    I think this was for you @Gunge:
    [​IMG]
     
    Brew_DD2 likes this.
  16. Apr 11, 2019 #16

    Clint

    Clint

    Clint

    Hammered.....

    Joined:
    Jun 29, 2016
    Messages:
    6,445
    Likes Received:
    2,931
    Location:
    North Wales
    The thing is they don't REALLY know...it's based partly on science we partly understand and they suppose the rest. They took years to find Bin Laden who was never more than a few miles away,can't find the Loch Ness monster and don't know what truly lives at the bottom of the deepest part of the sea....
     
    pvt_ak likes this.
  17. Apr 11, 2019 #17

    Gunge

    Gunge

    Gunge

    Landlord. Supporting Member

    Joined:
    Nov 5, 2016
    Messages:
    2,996
    Likes Received:
    1,678
    Location:
    NULL
    It's the BBC... it's photoshopped and a manufactured reason where the Brexit promises disappeared to. Full of shyte the lot of 'em. Bring on the revolution.
     
    BeerCat and Clint like this.
  18. Apr 11, 2019 #18

    Hoppyland

    Hoppyland

    Hoppyland

    Senior Member

    Joined:
    Nov 18, 2015
    Messages:
    868
    Likes Received:
    426
    Location:
    Dumfries & Galloway
    Or is light a wave function? Isn't a photon a quantum wave packet?
     
  19. Apr 12, 2019 #19

    Chippy_Tea

    Chippy_Tea

    Chippy_Tea

    Administrator. Administrator

    Joined:
    Mar 17, 2013
    Messages:
    24,963
    Likes Received:
    5,265
    Location:
    South Cumbria.
    Brilliant video.
    (skip to 40 seconds to miss the crap)


     
    phildo79 likes this.
  20. Apr 12, 2019 #20

    phildo79

    phildo79

    phildo79

    Member

    Joined:
    Feb 5, 2014
    Messages:
    513
    Likes Received:
    122
    Location:
    N. Ireland
    Cool!
     
    Chippy_Tea likes this.

Share This Page