The gaseous cloud surrounding the comet's core has more than doubled in radius during the past 24 hours (Oct. 24-25). "I captured these images on consecutive nights using the same equipment (a 14-inch LX200 GPS ) and similar exposure times (10x1s)," says photographer Eduardo Hernandez of Torreon, Mexico.

Don Barry ,

Hartung-Boothroyd Observatory, Cornell University Ithaca, New York

Oct. 25, 2007