IPFS News Link • Space Travel and Exploration
Astronomers Surprised to Find Asteroid With Rings
• http://www.wired.com, By Adam MannThe reason for this darkening was the asteroid’s two dense rings, which had briefly blocked the starlight. The thicker inner ring is about four miles wide, while the thinner outer ring is a little less than two miles. Spectroscopic analysis of the starlight also revealed that the rings are composed partially of water ice.