Astronaut with his family . Space Centre , Houston ; Apollo Nine lunar module pilot , Russell Schweickart and his wife Claire pose with their children , from left to right , Vicki , 9 years , Diane , 4 years , Rusty , eight years , Elin , Seven years and Randy , eight years , at their home in Nassau Bay , Texas recently . Rusty and Randy are twins . Schweickart and his two fellow astronauts will set off from Cape Kennedy on 28 February on a 10 day space mission . 26 February 1969