Source of Earth’s Water HD

Posted by SpaceMan in Comets & Meteors on 05 8th, 2010 | no responses

Carbonaceous Chondrite Asteroids – Main Belt Comets – Organic Matter … History Channel’s Series : The Universe : Amy Mainzer, John Lewis

Tags: astronomy, Earth, chondrites, halley

Comets HD

Posted by SpaceMan in Comets & Meteors on 03 18th, 2010 | no responses

Comets : Small Solar bodies made of rocky particles, dust and ice – Some believe that Comets are the source of water and organic matter on Planet Earth – Kuiper Belt – Oort Cloud … History Channel’s Series : The Universe : Amy Mainzer, Michael Zolensky, John Lewis

Tags: asteroids, solar, astronomy, oort

Asteroid vs Comet HD

Posted by SpaceMan in Comets & Meteors on 03 13th, 2010 | no responses

Exploring comets and asteroids – Comets faster than Asteroids, thus harder to deflect – … History Channel’s Series : The Universe : Amy Mainzer, Michael Zolensky, John Lewis

Tags: JPL, sun, Meteorites, Mars