Space Weather News for Dec. 3, 2006

http://spaceweather.com

FREQUENT FIREBALLS: Have you ever stepped outside after dinner to walk the
dog--just in time to see a bright fireball streak across the sky? It makes you
wonder, how often does that happen? More often than you think. A NASA meteor
expert has used a computer model of Earth's meteoroid environment to calculate
how often Earth runs into bits and pieces of comets and asteroids big enough to
produce fireballs. (A fireball is defined to be a meteor brighter than the
planet Venus.) Globally, Earth experiences more than a hundred fireballs every
day, according to the calculations. Visit http://spaceweather.com for complete
results.