Aerogel could be the coolest substance on earth. Ultra-light, strong, and translucent, it has been called 'frozen smoke'. But far from being cool/pointless, this stuff has other sci-fi properties that could make it answer to our energy efficiency prayers.

Companies Birdair and Cabot Aerogel have teamed up to integrate the ghosty whatsit into the roof of Radford University's athletic center. Made of Aerogel and a Teflon fabric, The material, called Tensotherm with Nanogel will, replace the Virginia school's current air-supported roof. The two inches thick fabric will cover the entire 52,000 square foot arena.

Developed by NASA (just like Tang and memory foam!), Aerogel is essentially goop with the water sucked out. The end product is a 99.8% air, fire-resistant, and sturdy wonder.

Green features include 3.5% transparency to save on lighting costs and [an unheard-of] R-value (a measure of insulation) of 12 to [] heating and cooling needs. Superior moisture control and sound dampening are added bonuses.

Aeroogel is also being tapped for next-gen home skylights and a fuel cell catalyst.

The project marks the first installation of the new material and is expected to be finished in November 2008, in time for Radford's NCAA basketball season opener. With all this going on over their heads, I hope the fans will still be able to keep their eyes on the court.

*Lighter-than-air photo courtesy NASA/JPL-Caltech.