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71 Comments
- cosworth99, on 07/04/2009, -1/+80-273.05C
0.10 Kelvin
Fixed. - Koppie, on 07/04/2009, -1/+63"Coolest" - I see what you did there.
- jman583, on 07/04/2009, -0/+26TRY READING IT LOUDER.
- inactive, on 07/04/2009, -1/+27screw the distant light, try for 10 GHZ overclock!
- Sornos, on 07/04/2009, -1/+25At least they didn't use Fahrenheit.
- DirtPile, on 07/04/2009, -0/+23Satellite is a dish best served cold.
- spriggig, on 07/04/2009, -6/+24Kudos to Europe and Japan for picking up the mantle of serious (and expensive) astrophysics. The US is too self-absorbed and ignorant of science to care anymore.
- vizerei, on 07/04/2009, -2/+18Cosmic background radiation slightly warms everything in space up. So yes, as the article states, we can infer that an object being naturally colder anywhere in space is extremely unlikely.
Your comment, buried for inaccuracy.
You also spelled "buried" wrong. - Sornos, on 07/04/2009, -0/+13Because this spacecraft is artificially cooled. And since we have no evidence of alien civilizations (aside from ourselves), we can assume nothing is colder.
- Disgod, on 07/04/2009, -1/+13What? Why not use Fahrenheit? I mean beyond it being a completely non-nonsensical scale and unit, and being an utter bitch to deal with, what's wrong with it? hater...
- inactive, on 07/04/2009, -0/+9Very cool
- inactive, on 07/04/2009, -1/+9Yes moronic youtube comments.
- techdever, on 07/04/2009, -8/+16HI BILLY MAYS HERE FOR JOKE. TIRED OF JUST NOT GETTING THE JOKE? GTFO OFF DIGG NOW
- jcrew77, on 07/04/2009, -1/+8GTFO OFF? I mean I dug you but you just said "get the ***** off off".
- asgardshill, on 07/04/2009, -1/+8Yes. Human stupidity.
- Disgod, on 07/04/2009, -0/+6Does that really need a /s? When you call something nonsensical and a bitch to deal with and end with calling someone a hater isn't that pretty obvious.
Note: I just noticed that I wrote non-nonsensical. Whoops. - bwjacket, on 07/04/2009, -0/+5"Here comes Astronaut Jones!"
- reshep, on 07/04/2009, -7/+12I DON'T GET THE JOKE
- Disgod, on 07/05/2009, -0/+4I disagree Celsius has a much greater advantage over Fahrenheit. It, like Fahrenheit, is based on the boiling/freezing point of water, but instead of the complex machinations that Fahrenheit used to create his scale, it is based at 0 and 100 and is divided into 100 equal parts. Fahrenheit for some reason has freezing at 32 and boiling at 212. 180 units in between the two for no reason. Kelvin even still uses a similar unit. The only difference between Celsius and Kelvin is that Kelvin's start is at absolute zero, an unknown at the time the scale was created. Celsius has an advantage over Kelvin for everyday use because it is based on understandable benchmarks for people.
- sanman, on 07/04/2009, -0/+4"affect" (sp)
the spaceraft is being actively cooled, which allows its temperature to drop below the level from the cosmic background radiation
so, I wonder if these bolometers are going to detect any bolos?
we'd better find them before they find us - sgfreak784, on 07/04/2009, -0/+4and the second comment.
- monodelasno, on 07/05/2009, -0/+3Only after marriage
- techdever, on 07/04/2009, -2/+5HI BILLY MAYS HERE FOR GRAMMAR MISTAKES.
- DivineMonkey, on 07/05/2009, -0/+3There's a huge difference between going to the moon and potentially discovering how the universe was formed.
- fuzzybeard, on 07/04/2009, -0/+3OK, Hemingway, I'm gonna have to cut you off for the night. Call you a cab?
- inactive, on 07/04/2009, -0/+3KHHHHAAAAAAAAAAAAAAAAAAAAAAAAANNN!
- HappyScrappy, on 07/04/2009, -0/+2Well, even if there is nothing to exchange it with, you can always just radiate it.
- krillr, on 07/04/2009, -1/+3it does effect the spacecraft, but there are several active refrigeration unites onboard which cool it down even further and heavily counteract the effects of background radiation.
its safe to say its the coolest in the universe assuming there are no other advanced civilizations in the universe performing the same experiment(s). - warriorscot, on 07/04/2009, -0/+2These things usually end up making money in the long run which is something that is understand very well outside the US especially in Japan. Something doesn't neccesarilly have to make money directly but the knowledge and solutions to technical problems are invaluable. It also keeps a pool of knowledge that can be valuable in times of need as there is usually not time to train a whole generation from scratch with scientific knowledge and skills before you need those skills.
- Lykil, on 07/04/2009, -0/+2Sciencedaily uses the phrase coldest KNOWN object in the universe
- simbait, on 07/04/2009, -1/+3"frigidity" is a measure unit? does it apply to girls too?
- fuzzybeard, on 07/04/2009, -0/+2Yes, the bureaucratic mentality.
- The_Tate, on 07/05/2009, -0/+1"From Hell's heart, I stab at thee..."
- Mohdoo, on 07/04/2009, -1/+2I myself prefer the O'Neill.
- mirot, on 07/04/2009, -2/+3..and i almost dugg you down
- inactive, on 07/04/2009, -5/+6WHATS COOLER THAN BEIN' COOL...?
ICE COLD! - ericthesalmon, on 07/05/2009, -0/+1Yes, but they're not currently in space because the experiments are finished, unless someone's working on one when he said that, which I guess he thinks is unlikely?
- TonyCubed, on 07/04/2009, -2/+3When the topic title said "Coolest", I was expecting someone had built the USS Enterprise or something like that, now that would be cool! :D
- DirtPile, on 07/04/2009, -0/+1You, sir, are a king among men.
- Hidemons, on 07/05/2009, -0/+1aw common! That's pretty misleading. I was expected some kick ass satellite or something.
- ericthesalmon, on 07/05/2009, -0/+1I'm guessing it uses thermoelectric cooling to shunt the heat to a radiator where it escapes as blackbody radiation. That'd have the advantage of no moving parts which would make aiming the thing more difficult and it would have no working fluid to leak.
http://en.wikipedia.org/wiki/Thermoelectric_coolin ... - Lane, on 07/04/2009, -0/+1Id love to know more about the cooling mechanism. It sounds like phase change (fridge) but without air to vent the excess heat I can't wrap my mind around where it is dissipated to..
- ericthesalmon, on 07/05/2009, -0/+1This needs to be so cold because it's looking for weak microwave radiation and needs to be very discriminating and sensitive. The telescope uses a device that detects light when incoming photons give electrons on the surface enough energy to jump from one energy level to another and since it's designed for microwaves the gap between the levels is small.
At higher temperatures, electrons can make the jump with just thermal energy, giving a signal even when no photon has hit the device. Cooling it down robs the electrons of that energy and reduces the number of these false positives. - vizerei, on 07/05/2009, -0/+1@zjbird:
You are ether a complete idiot, and after the 4th event I went to today I know you're in plentiful company. Or, you are a kid, probably early teens, who has yet to learn complex physics or how an air conditioner works (very simplified version of what this space craft employs).
I hope it's the latter but assume it's the former. Please don't breed. Think of the children. - inactive, on 07/05/2009, -0/+1If they think that's cold, they should meet my wife!
- bizchris, on 07/05/2009, -0/+1"Although laboratory set-ups have got closer to absolute zero than Planck, researchers say it is unlikely there is anywhere in space currently that is colder than their astronomical satellite."
Aren't those laboratory set-ups technically in space also?
/pedant - inactive, on 07/05/2009, -1/+1°
- monodelasno, on 07/05/2009, -1/+1"Assumption is the mother of all *****"
- Penn - sgfreak784, on 07/04/2009, -2/+2You know what happens when you assume...
It makes an "ass" of "u" and "me"...yes, I know. I'm already one.
...Thumbs (down) away! - monodelasno, on 07/05/2009, -0/+0Radiation. Same thing that warms it up.
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