Claim CE261: Comets would not have lasted in an old universe
Brief responses in the Index to Creationist Claims in the TalkOrigins Archive.
Video in the How Creationism Taught Me Real Science series.
Bad Calculation: The Case of the Shrinking Comet and the Age of Solar System
Post by R. Joel Duff on his Naturalis Historia blog about comet 67P.
Article by Dave E. Matson on the Secular Web site. Also available in the TalkOrigins Archive.