Former U.S. government scientist Stewart Nozette was sentenced to 13 years in prison for trying to sell secrets to Israel.
The sentence handed down Wednesday by a federal judge was part of a plea deal, Reuters reported.
Nozette pleaded guilty last September to seeking to sell classified information.
Nozette, who was arrested in 2009, offered classified information on U.S. satellites, early warning systems and other communications intelligence to an undercover FBI agent who was posing as an Israeli Mossad agent.
Nozette had been a renowned scientist during his many capacities in the government and with the space program, as well as his work at Lawrence Livermore National Laboratory where he helped design lightweight satellite radar technology.