प्रवेशद्वार:अंतरिक्ष उड़ान/Did you know/11

…that the Vostok 4 mission was shortened because cosmonaut Pavel Romanovich Popovich accidentally told flight controllers that he was "observing thunderstorms". This was a coded signal requesting an abort because the cosmonaut was feeling ill, however Popovich was actually trying to inform ground controllers that he could see thunderstorms from space.