Watch step by step as an artist creates a replica of a famous van Gogh painting. Can you tell the genuine article from the forgery? NOVA scienceNOW challenges three teams of computer scientists to the task of telling the real van Gogh from the fake. Tune in July 2 at 9 p.m. on PBS. A brand new season of NOVA ScienceNOW starts Wednesday, June 25 at 9pm on PBS.

For the complete program schedule and to find out what’s next, visit NOVA ScienceNOW online.