David Jewitt and Hairong Lai

This will be a two part talk centered on the theme of 
on-going collisions in the solar system.  In the first
part, we will describe new Hubble Space Telescope observations
of a remarkable object recently discovered in the main 
asteroid belt.  This object appears to be the debris cloud
resulting from a collision - the first such object to be 
directly observed so soon after formation.  In the second
part we will describe mysterious fluctuations in the interplanetary
magnetic field that might be explained by on-going collisions.