Meteors and Comets

Gregory L. Vogt

មករា 2010 · Lerner Publications

អំពីសៀវភៅ​អេឡិចត្រូនិកនេះ

Have you ever seen a shooting star? What you really saw was a meteor! A meteor is actually a chunk of metallic or stony matter – called a meteoroid – that enters the earth’s atmosphere from outer space. A comet, on the other hand, is a lump of ice and dust that periodically comes into the center of the solar system from somewhere in its outer reaches. Learn more about meteors and comets in this lively and informative book!

អំពី​អ្នកនិពន្ធ

Gregory L. Vogt is a senior project manager with the center for educational outreach at the Baylor College of Medicine in Houston. His duties focus on space biomedicine, teacher training, and work with graduate students and postdoctoral fellows. Vogt began his career as an eighth grade science teacher and later joined the NASA Aerospace Education Services Program. He established the Teaching from Space office at the NASA Johnson Space Center. He is a former science museum director. Vogt is an educational consultant and the author of many curriculum guides and more than 90 juvenile and adult science books.