Charles B. Lipman

Charles Bernard Lipman (17 April 1883 – 22 October 1944) was a Russian-born American microbiologist and professor of plant physiology at the University of California, Berkeley.

He was a proponent of the idea of cosmic seeding and claimed evidence of meteorites carrying micro-organisms, although replication of his experiments showed that his results were due to contamination.

Lipman was born in Moscow, Russia and had moved to the United States at the age of six with his brother.

His brother Jacob G. Lipman also took an interest in bacteriology and became a professor at Rutgers University.

He claimed that stony meteorites had bacteria[6] even after their surfaces had been sterilized and the material broken down, but this was again shown to be due to contamination.