In the News & Views article “Archaeology: High tech from Ancient Greece” by François Charette (Nature 444, 551–552; 2006), there was a typographical slip in reference 5. It should read: Field, J. V. & Wright, M. T. Ann. Sci. 42, 87–138 (1985). Also, we were a century out in dating the re-emergence of certain elements of the Antikythera Mechanism in Byzantium. According to current scholarship, this occurred in the sixth century, not the fifth as stated.