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Space Science

Scientists Take Most Accurate Reading Yet of Universe's Cooling 91

angry tapir writes "An international team of astronomers has used the CSIRO-run Australia Telescope Compact Array to measure the cooling of the universe since the Big Bang. According to the CSIRO, it is the most accurate reading yet of how hot the universe used to be. When the universe was half its current age its temperature was -267.92 degrees Celsius (5.08 Kelvin), the team found, which is warmer than today's universe (-270.27 degrees Celsius)."
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Scientists Take Most Accurate Reading Yet of Universe's Cooling

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  • That the universe will not end in a fire ball, but a deep freeze.
  • by InPursuitOfTruth (2676955) on Wednesday January 23, 2013 @07:26PM (#42675775)
    We need to start pumping more carbon dioxide into the universe!
    • Don't worry this universal cooling thing is just a great big hoax designed to spur the passage of anti-freedom pollution regulations before the supposed "heat death of the universe." Just ignore the alarmists, the universe has been cooling for a long time and I'm sure it can adapt.

  • Fail, fail, fail. (Score:5, Informative)

    by Anonymous Coward on Wednesday January 23, 2013 @07:26PM (#42675777)

    267.92C is 5.23 K, not 5.08 K, and 270.27C is freaking hot.

    • by Anonymous Coward

      ... and also, Slashdot ate my unicode characters. Come on, Slashdot, join us in the 21st century! You'll be fine, I promise!

      • I hate to break it on you, but the minus sign is ASCII, and last time I checked, Slashdot leaves ASCII characters alone... But maybe you browser (or OS?) doesn't?
        • He was presumably talking about the degrees symbol (U+00B0).

          • No, he was talking about both the minus and the degree sign. But you are right the degree symbol is indeed not ASCII, but ISO-Latin-1 (a very common 8 bit charset which is a subset of ASCII). Oddly enough, Slashdot still removes it, even though it predates Unicode.
    • no,
      it's 541.07K
      • by TapeCutter (624760) on Wednesday January 23, 2013 @10:28PM (#42677137) Journal
        Just make it 640K, that should be enough for any universe.
    • by Georules (655379)
      Yeah, a lot of fail there. I have no idea what temperatures the summary is trying to express.
    • I fucked up and dropped a "-" :(
  • by ganjadude (952775) on Wednesday January 23, 2013 @07:29PM (#42675799) Homepage
    wait wait wait a minute, you first its global cooling, than warming, now universal cooling? WHAT IS IT!!!?!?!?!!

  • by BenSchuarmer (922752) on Wednesday January 23, 2013 @07:37PM (#42675865)
    Quit complaining and put on a sweater!
  • by reverseengineer (580922) on Wednesday January 23, 2013 @07:43PM (#42675909)

    Yeah, they knew about the universe before it was cool.

    • by pongo000 (97357)

      Bruce Schneier knew about the universe before it was cool.


    • Yeah, they knew about the universe before it was cool.

      Actually, according to the poster, it's heated up by a considerable margin. "Which is warmer than today's universe (270.27 degrees Celsius)." I'd like to buy a math transform, an inverse abs() function please?

  • should be: The team measured the temperature at -267.92 degrees Celsius (5.08 Kelvin), which is warmer than today's universe (-270.27 degrees Celsius). I suck.
  • Has anyone got a number for the amount of heat locked up in black holes?

    And when a black hole forms does the temperature of the universe experience a quantum drop?

    • by rpresser (610529)

      Since the heat "locked up" in black holes hasn't disappeared from the universe, just become locked in a black hole, no, the average universe temperature doesn't drop.

      • by Genda (560240)

        In fact since due to time dilation, everything that drops into a blackhole seems to freeze at the event horizon, the energy radiating from the black hole must equal the energy that will be lost as a function of the matter that falls in.

        • If an observer dropped into a black hole their time would slow.

          To an outside observer the stuff just falls in.

  • by Tablizer (95088)

    That's really cool

  • Damn, this climate change is really getting out of control. It's bad enough that the planet's changing, but the universe?
  • With a rectal thermometer the size of Uranus, of course...
  • So I guess the real way to solve global warming is universal cooling. Hmmm.

  • The early universe was warm, almost balmy... a popular place for ancient New Yorkers to go in the winter.

  • Oh, come on, somebody had to say it.

  • Two degrees colder? Me, without my muff.

"Hey Ivan, check your six." -- Sidewinder missile jacket patch, showing a Sidewinder driving up the tail of a Russian Su-27