Astronauts test sex in space - but did the earth move?

(The Guardian) - US and Russian astronauts have had sex in space for separate research programmes on how human beings might survive years in orbit, according to a book published yesterday.

Pierre Kohler, a respected French scientific writer, says in The Final Mission: Mir, The Human Adventure that the subject is taboo both at Nasa and at mission control in Moscow, but that cosmic couplings have taken place.