Discussion » Questions » Science and Technology » What color are black holes? Really.

What color are black holes? Really.

Posted - May 30, 2017

Responses


  • Light is required for color to be perceived.  If the gradational strength of a black hole does not allow light to escape then it has no color.
      May 30, 2017 9:44 PM MDT
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  • 46117
    That's where the gays come from
      May 31, 2017 7:43 AM MDT
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  • 46117
    Black  is a color
      May 31, 2017 7:22 AM MDT
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  • Black--the color defined by the absence of light (which is part of why some people say black is not really a color). This post was edited by Benedict Arnold at December 20, 2017 1:23 PM MST
      May 30, 2017 11:18 PM MDT
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  • 46117
    It's a color.  But not really.
      May 31, 2017 7:24 AM MDT
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  • 5354
    Radiation is emitted from the event horizon of the hole whenever some piece of matter fall into it, But the radiation wavelengths is far outside of the (fairly harmless) band that we ascribe colors to.
      May 30, 2017 11:49 PM MDT
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  • 46117
    Yeah?   So what color is that  then.  No color?  There still has to be some shade there.
      May 31, 2017 7:25 AM MDT
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  • 5354
    It has none of the colors we see, so i guess it is correct to call it 'Black' ;)
      May 31, 2017 2:28 PM MDT
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  • 13395
    If you could see one it would be invisible because they measure zero on the scale of dimension. 
      May 31, 2017 12:21 AM MDT
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  • 46117
    What color is invisible though?
      May 31, 2017 7:25 AM MDT
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  • 13395
    I've never seen anything invisible but it would be whatever color it reflects same as the sky. Air is invisible but it still reflects a color.
      May 31, 2017 7:39 AM MDT
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  • 46117
    Uh huh
      May 31, 2017 7:42 AM MDT
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  • 2515
    Massive black holes can't be seen, but scientists can see the stars that rotate around it and can tell how fast they are moving. See photo from NASA. 
      May 31, 2017 3:26 AM MDT
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  • 44550
    There is an 11 second video taken over 15 years. It is the center of our galaxy and shows a handful of stars orbiting nothing visible. I couldn't find it on youtube, though.
      May 31, 2017 7:00 AM MDT
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  • 46117
    I'm so confused.
      May 31, 2017 7:27 AM MDT
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  • 46117
    Hmmm.....

      May 31, 2017 7:26 AM MDT
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  • 44550
    Pink on the inside.
      May 31, 2017 6:56 AM MDT
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  • 46117
    That's what I thought.
      May 31, 2017 7:27 AM MDT
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  • 46117
    12 kadzillion x 3

      May 31, 2017 7:31 AM MDT
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  • 46117
    Since they are invisible, anything goes.  

    I don't know if I want that much cream.  One can have too much cream believe it or not.
      May 31, 2017 7:28 AM MDT
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  • 7790
    Interesting reading about this very subject:

    http://sciencing.com/color-black-hole-4921.html
      May 31, 2017 7:19 AM MDT
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  • 46117
    Black holes are the most dense objects in the universe. Because of their density, they form extremely powerful gravitational fields. Black holes absorb all surrounding matter and energy within a certain proximity. For this reason, these celestial objects emit no light and therefore do not have a color. Astronomers can detect them, however, by monitoring the properties of the materials and energy surrounding them.
      May 31, 2017 7:30 AM MDT
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  • 22891
    i have no idea, never seen one
      May 31, 2017 5:56 PM MDT
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  • 13071
    An infinitely dense region of space, also known as a singularity, has no color that we know of. This post was edited by carbonproduct at December 20, 2017 1:22 PM MST
      May 31, 2017 5:58 PM MDT
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