Three NASA astronauts whose prolonged space mission ended with a trip to the hospital last month won't say which one of them got sick.

Discretion Advised Last month, three NASA astronauts and one Russian cosmonaut were diverted to a hospital in Florida upon returning to Earth from the International Space Station — and the cause of the debacle has still not been made public.

Three NASA astronauts were briefly hospitalised after returning from ISS. Details of their condition remain confidential, but they assure they are well.