Expanding and Contracting Dust Clouds Posted by Dr. Allen F. Bortrum July 13, 2005 Deep Impact forms dust like talcum powder; dusty disks form solar systems
The Transcontinental Railroad, Part IV Posted by Brian Trumbore July 8, 2005 More snow tales...1867-68
A Huge Neighbor and a Small Planet Posted by Dr. Allen F. Bortrum July 6, 2005 Our neighboring Andromeda galaxy bigger and closer than we thought; a new small planet