http://www.spaceflightnow.com/shuttle/sts109/020107preview/

"Spacewalking astronauts also will attach a high-tech cooling system to the base of the telescope to revive an infrared camera/spectrometer that's been out of action since January 1999 when the nitrogen ice in its original cryogenic cooling system ran out."

Oh wow Bill, where can I get some of this amazing "nitrogen ice"? It must be so much better than that boring liquid nitrogen that everyone else uses.

Seriously, it bugs me if Science Journalists get so snappy and hip that they lose touch with scientific reality. Most high-school kids know perfectly well what liquid nitrogen is - at least that it is cold, and high tech. Don't go inventing new things that don't exist!

(Yes, I know that solid Nitrogen DOES exist, for instance on Pluto, but not in Earth orbit)