Corrected entry: When the first portal opens, a light is pulled through it and into outer space. That type of light generates a lot of heat, so the bulb would be quite hot. But it's absolute zero in space, so the bulb would have exploded as soon as it passed through the portal.
Rlvlk
15th May 2005
Correction: Temperature of space is not absolute zero. By the laws of thermodynamics, absolute zero is the coldest possible temperature and immpossible to reach. Lights in freezers and fridges don't explode when you leave them on for hours on end.
Rlvlk