The meeting is about planets located trillions of miles away , with no national security implications , '' Geoff Marcy , an astronomy professor at the University of California , Berkeley , wrote in an e-mail to the organizers . NASA had questions from Chinese researchers from next month 's Kepler science conference . China : NASA management apparently misinterpreted a Chinese national security law . The law prevents NASA funds from being used to collaborate with China .
NASA had questions from Chinese researchers from next month 's Kepler science conference . China : NASA management apparently misinterpreted a Chinese national security law . The law prevents NASA funds from being used to collaborate with China .