October 30th, 2014
First Quarter Moon
moon
Robert Bigelow

December Mystery Meteor Shower

Meteor showers occur when Earth passes through a stream of debris given off by a comet. Particles that make up this debris stream typically range in size from pebbles to sand grains.

Seth Jarvis

Evaporating Comets

This week’s Cosmic Quiz winner is Mary Newland, who asked, “Every year I like to watch the Perseids meteor shower. If the meteors are continually being shed, why does the comet not cease to exist?” That is a great question! As…