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Two Black Holes to Merge

An anonymous reader writes "Astronomers have discovered two supermassive black holes that they predict will eventually collide. As they say in bad SF, 'it could warp the fabric of space.'"

34 of 84 comments (clear)

  1. Sure it may be able to warp the fabric of space by Tim_F · · Score: 3, Funny

    But what will it do to the continuum of time?

  2. What?! by Anonymous Coward · · Score: 2, Funny
    As they say in bad SF, 'it could warp the fabric of space.'

    I thought they said 'May the force be with you' in really bad SF...

  3. err... by Lord+Bitman · · Score: 2

    If two objects which warp space so much that nothing can ever collide with them collide, what the bloody fuck happens?

    --
    -- 'The' Lord and Master Bitman On High, Master Of All
    1. Re:err... by kmellis · · Score: 2
      "...warp space so much that nothing can ever collide with them..." - Lord Bitman
      I think perhaps you have a fundamental misunderstanding of black holes. The truth is somewhat the opposite: anything that passes within the event horizon can't not "collide" with the black hole.
    2. Re:err... by Lord+Bitman · · Score: 2

      well.. time, I mean. Not space.

      --
      -- 'The' Lord and Master Bitman On High, Master Of All
  4. Heh by TheOnlyCoolTim · · Score: 3, Interesting

    I remember reading a book, I think it was part of the Manifold series by Stephen Baxter, where the premise of the story was that every few hundred million years a collision like this killed all life in the entire galaxy through a massive release of radiation.

    Tim

    --
    Omnia vestra castrorum habetur nobis.
  5. 'it could warp the fabric of space.' by E1v!$ · · Score: 3, Insightful

    Yea, right. I have several billion electrons right here warping the fabric of space.

    Who the hell thinks this crap up?

    1. Re:'it could warp the fabric of space.' by Anonymous Coward · · Score: 3, Informative

      Who the hell thinks this crap up?

      Apparently, the theoretical astrophysicists thought it up. RTFA.

      "The collision will create ripples in space, known as gravitational waves, that will spread across the universe, Centrella said."

  6. Or, as in they say in poorly written articles... by Romothecus · · Score: 5, Informative

    EVERYTHING WITH MASS WARPS SPACE. The more massive it is, the more it warps space. Black holes warp space so much it "tears," for lack of a better term. Two black holes combining into one huge black hole isn't going to do anything that they wouldn't do otherwise.

  7. Sure... by dimator · · Score: 5, Funny

    They might *think* they're doing the right thing, but they're young now. Let's just hope they sign a pre-nup.

    --
    python -c "x='python -c %sx=%s; print x%%(chr(34),repr(x),chr(34))%s'; print x%(chr(34),repr(x),chr(34))"
    1. Re:Sure... by McFly69 · · Score: 2

      Let's just hope they are happy. If a divorce would happen, it could get very messy.

      --



      NO! NO! Please don't mod me, I'm too young to die a troll. *click* Oh the pain, the pain...
  8. Already happened by Anonymous Coward · · Score: 4, Insightful

    Keep in mind that the further out we look in space, the further into the past we are seeing. Since these black holes are 400 million light-years away, we are seeing them as they were 400 million years ago, and the researchers are predicting that they'll merge in a few hundred million years, which means they collided a hundred million years ago or so. Humans (or whatever species we evolve into) will most likely be extinct long before the light from the collision reaches us hundreds of millions of years from now.

    1. Re:Already happened by lexarius · · Score: 3, Informative

      I suppose it depends on how fast gravitational waves travel. Assuming they travel no faster than light speed, it is entirely possible that we wouldn't feel the effects of this until we actually see it.

    2. Re:Already happened by Cyno01 · · Score: 2
      the light from the collision
      Erm, they're black holes dude, not even light can escape, we wont be 'seeing' them ever.
      --
      "Sic Semper Tyrannosaurus Rex."
    3. Re:Already happened by callmeda5id · · Score: 2, Insightful

      unless, of course, the scientists know about what you described and added the extra time. let's say, they look at the 2 black holes and say: holy cow, they are going to merge in 800 million years. oh wait, they are 400 million light years away from us, so it will actually happen in 400 million years from now on.

  9. profound quote of the day :) by Minupla · · Score: 5, Funny

    "Black holes are where God divided by zero." - Steven Wright

    --
    On the whole, I find that I prefer Slashdot posts to twitter ones because I don't get limited to 140 chars before
  10. When anf How Far by kmellis · · Score: 3, Interesting
    Note that although the distance to this galaxy and when the collision will be observed both just happen to be in the half-billion year range, the two numbers are independent.

    (Except that there's the weird possibility that the speed of gravity waves may not be equal to the speed of light. Gravity waves are what the article is presumably referring to when it talks about "warping the fabric of space". BTW, I don't even pretend to understand the "speed of gravity" debate, nor even am I equipped to assess whether it's a legitimate debate or fringe/crank science. I can't even sort out the terms that are used.)

  11. I'm confused by darthBear · · Score: 5, Funny

    no one else is reporting that AOL-TW and Microsoft are going to merge.

  12. Is the FTC looking into this merger? by leviramsey · · Score: 3, Funny

    Also, how much synergy between the black holes can be leveraged to deliver greater shareholder value?

  13. What it wouldn't do otherwise. by Christopher+Thomas · · Score: 5, Informative

    Two black holes combining into one huge black hole isn't going to do anything that they wouldn't do otherwise. ...Except releasing gravity waves of strong enough magnitude to be detected from great distances.

    Magnitude matters.

  14. three billions year, that all we have! by fermion · · Score: 5, Funny
    relevant parts of the article

    Two giant black holes have been found at the center of a galaxy born from the joining of two smaller galaxies and are drifting toward a cataclysmic collision that will send ripples throughout the universe many millions of years from now, scientists said today.
    or, we will have destroyed ourselves or a meteor will destroy us by the time we see this.

    Eventually, those ripples will hit Earth's galaxy and cause infinitesimal wobbling in all matter, though it would be far too tiny to be noticed by humans.
    Even if we do survive long enough to see it, we won't care

    "This is the first time we have ever identified a binary black hole. This is the aftermath of two galaxies that collided sometime in the past."
    So it is not enough that we might be sucked into one black hole, now we can be split apart by two.

    In about four billion years, astronomers believe, the Milky Way and the nearby Andromeda galaxy will collide and merge, fusing their black holes into one.
    So in addition to meteors, magnetic reversal, volcanos, and sunspot we know have to worry about another galaxies offing us.

    The Sun is expected to blow up into a nova in three billion years, and perhaps then collapse to form a small black hole of its own, he said.
    But this doesn't matter because our sun will suck in our burned remnants long before that.

    Now, why is it that we are so optimistic?

    --
    "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
    1. Re:three billions year, that all we have! by jafuser · · Score: 2, Insightful
      three billions year, that all we have!
      What you say !!
      --
      Please consider making an automatic monthly recurring donation to the EFF
    2. Re:three billions year, that all we have! by meringuoid · · Score: 3, Informative
      The Sun is expected to blow up into a nova in three billion years, and perhaps then collapse to form a small black hole of its own, he said.

      The Sun will do no such thing. It'll blow up into a red giant, and then when the outer atmosphere drifts away it will leave behind a white dwarf. The Sun doesn't have remotely enough mass to form a black hole.

      --
      Real Daleks don't climb stairs - they level the building.
  15. Can they be nullified? by SAN1701 · · Score: 2, Interesting

    I wonder what happens when a black-hole starts eating anti-matter (if it finds some). Does this decreases its mass, since matter and anti-matter destroy each other?

    1. Re:Can they be nullified? by julesh · · Score: 3, Funny

      No, because the equivalent energy of the mass is released, and because the energy can't escape from the black hole, it might as well be counted as mass. I think. Or maybe not... perhaps you'd better just ask Hawking, cos he's made a career out of answering entirely pointless questions just like that one...

  16. Does this mean... by Hard_Code · · Score: 2

    ...Tasha Yar is coming back?...

    --

    It's 10 PM. Do you know if you're un-American?
  17. Ringworld by crow · · Score: 2

    This is also close the a background plot in Ringworld, only there the radiation was caused by a chain reaction of super novas in the galactic core.

  18. Time ... by vorwerk · · Score: 2, Funny

    You have to appreciate astrophysicists' short-term excitement and long-term planning.

    "Two black holes are going to merge! Two black holes are going to merge!

    Of course, we'll be watching this very carefully over the next one hundred million years ..." :)

  19. Mistake by Yunzil · · Score: 3, Informative

    Dr. Hasinger noted that humans on Earth would not have to worry about this galactic collision: they will not be around. The Sun is expected to blow up into a nova in three billion years, and perhaps then collapse to form a small black hole of its own, he said.

    Um. No. The Sun is not massive enough to "blow up into a nova" or to collapse into a black hole. It will, most likely, expand into a red giant (and swallowing Mercury, Venus, and maybe the Earth). Whatever is left after that will shrink into a white dwarf.

    1. Re:Mistake by Yunzil · · Score: 2

      BUT, the Earth's orbit will decay over the course of around 5 billion years, so we are going to get sucked in, one way or another.

      No. The sun is losing mass; something like 4.6 million tons per second. This means that the Earth's orbit is gradually getting larger, not decaying.

  20. mel brooks knows what it'll do by evacuate_the_bull · · Score: 4, Funny

    make this more apropo :)

    Dark Helmet:"What the hell am I looking at?
    When does this happen in the movie?"
    ColonelSandurz: "Now. You're looking at now, sir.
    Everything that happens now is happening now."
    Dark Helmet: "What happened to then?"
    Colonel Sandurz: "We passed it."
    Dark Helmet: "When?"
    Colonel Sandurz: "Just now. We're at now, now."
    Dark Helmet: "Go back to then!"
    Colonel Sandurz: "When?"
    Dark Helmet: "Now!"
    Colonel Sandurz: "Now?"
    Dark Helmet: "Now!"
    Colonel Sandurz:"We can't!"
    Dark Helmet: "Why?"
    Colonel Sandurz: "We missed it."
    Dark Helmet: "When?"
    Colonel Sandurz:"Just now."
    Dark Helmet: "When will then be now?"
    Colonel Sandurz: "Soon."
    Dark Helmet: "How soon?"
    Technician: "Sir!"
    Dark Helmet: "What?!"
    Technician: "We've identified their location!"
    Dark Helmet: "Where?!"
    Technician: "It's the moon of Vega."
    Colonel Sandurz:"Good work. Set a course and prepare for our arrival!"
    Dark Helmet: "When?!"
    Technician: "Nineteen hundred hours, sir!"
    Colonel Sandurz: "By high noon tomorrow they will be our prisoners!"
    Dark Helmet: "WHO??!!"

    --
    Satanists get good grades too...suspiciously good grades
  21. The big question by pagercam2 · · Score: 5, Funny

    The earth's sun will burn it self out long before the few hundred million years, so the question is do two black holes really collide if no one is there to watch them????

  22. Re:Already happened (and 'Gravity Waves') by Lord+Crc · · Score: 2, Informative

    AFAIK 'Gravity Waves' are not bound by the speed of light, they are instantaneous.

    Quote from this page: "Gravitational waves are a prediction of Einstein's general relativity theory which describes gravity as distortions, caused by mass, of the very fabric of the Universe - spacetime. They are ripples in the spacetime fabric that travel outwards at the speed of light."

    However measurements are on the way to test this.

  23. Re:If... (O/T) by Cyno01 · · Score: 2

    Yeah, also i've always wondered how they get the sound of the skis/snowboards and stuff in the winter olympics, do they have the ski hills miced? Same with the ramps and stuff at the gravity/x games.

    --
    "Sic Semper Tyrannosaurus Rex."