Fans of Stephanie Meyers' Twilight series -- now coming to a
silver screen near you - love the fact that her vampires
"sparkle" in sunlight rather than burn up, a la Dracula. It's an
intriguing departure from classical vampire lore, and far be it
from us to argue with artistic license. But you don't have to be
a broody vampire to have a bit of a glow about you. A team of
Japanese researchers have now proven the existence of human
bioluminescence by producing the very first photographs of our
natural "glow." Bioluminescence is a common phenomenon in marine
creatures (squid, exotic fish that live in the darkest depths of
the ocean, fireflies, etc.), but all living things emit very
weak light -- and not just in the form of heat (the basis for
night vision goggles and thermal imaging). Scientists
hypothesize we glow as a byproduct of certain biochemical
reactions. The Japanese scientists used very sensitive cameras
that could detect single particles of light (photons), and
placed five male test subjects in comple