View Full Version : The Link Between Asteroids and Meteorites

2006-Sep-11, 06:19 PM
In theory, asteroids and meteorites are made of the same basic elements; it's just that asteroids are much much bigger. But scientists had always found troubling chemical differences between the two kinds of objects. New data gathered by the Japanese spacecraft Hayabusa, which recently visited the near-Earth asteroid Itokawa, shows that there's a good reason for the difference. It's the long-term effect of space weathering - solar and cosmic radiation - that changes the surface of asteroids to look different from meteorites.

Read the full blog entry (http://www.universetoday.com/2006/09/11/the-link-between-asteroids-and-meteorites/)