Kerr Watch

Elapsed time since Richard Kerr failed to inform his Science readers of the confirmation of nanodiamonds at the YDB: 6 years, 3 months, and 7 days

Younger Dryas Impact debate rocking to and fro' in PNAS

Vance Haynes on the Clovis Comet in PNAS

Firestone West and Bunch re Hanyes