nine weeks after the first commercial rocket to carry astronauts was launched to the international space station, the mission was completed when the craft splashed down in the gulf of mexico. it's the first space capsule to land in water in 45 years, ending a test flight for the new astronaut taxi service provided by the californian firm, space x. our science correspondent rebecca morelle reports. 200 metres. brace for splashdown. copy, braced for splashdown. history in the making as the dragon capsule returns home. as you can see on your screen, we have visual confirmation for splashdown. applause. the first private spacecraft to bring astronauts back to earth. dragon spacex, separation confirmed. their journey began from the international space station.