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For FReepers in the western US (& Hawaii), I have a heads-up for - potentially - a really nice meteor display early this coming Saturday morning. Points east will not be able to see the peak of the display because - at 4:36 AM PDT - twilight or daytime will already have occurred. The best show will be looking to the northeast. There will be a 3/4 full waning moon high in the sky, so if the observer can shield oneself from the moon behind an obstacle (phone pole, house, car, tree, etc.) the viewing will be improved. I was...

The meteors that are about to rain down in the early morning of September 1 date from around 4 A.D., the latest calculations show. It is not often that we can tell when a shooting star was first released from a comet into space, to travel as a meteoroid in an orbit around the Sun, and finally collide with Earth's atmosphere to shine as a meteor for our enjoyment. Most meteors that sporadically flash across the sky on a dark moonless night date from anonymous times. Only in recent years have we learned to trace young meteor showers, just a...