He said something about an experiment on -270°C, in any what context now.
What is the lowest temperature on Earth they reached in a lab? I saw a movie about the preparations of the Cassini-Huygens mission to test material for Titan, but on Titan it is no -270°C. I think it is around -170°C there. If you prefer talking in Kelvins go ahead.
(Yes I heared -270°C and saw it print on the screen on telly)

The lowest temperatures reached in a lab are extremely close to absolute zero (0 K, -273 C, -459 F). I think labs regularly get within 1/1000 of a degree away from absolute zero, possibly much closer (like 1/1000000 of a degree).

Do a web search on atom traps or Bose-Einstein Condensation for more information.

And what about organisms surviving hot environments

There are the tubeworms and other thingees right next to the ocean thermal vents, which are hot enough right at the exit point to melt lead.

And I believe I actually read that some kinds of bacteria can survive above the boiling point in mineral/hot springs in yellowstone.

Sorry, no references.

__________________
Pre-Quote: 'To survive one has to experiment. When the environment changes, the traditional way of doing things doesn't work.'

Quote:
"It's the outriders, the organisms that seem to be maladjusted before the change, which are the only ones that survive these changes...in that way a species continues."

Carl Sagan