PTYS/ASTR 206Comets / Extraterrestrial Life 4/26/07 Comets … and the possibility of extraterrestrial life.
NOTES: Solar System Debris Comets: Nucleus is a dirty snowball (Whipple) from 1-10 km. We see ion tail, a veil of evaporated ions swept back by solar wind.
Astronomy: Perspective
Meteor Showers
Meteor Showers. What's the Source of Meteor Showers? Comets...
