After a two-week delay, SpaceX is preparing for its latest launch which will send four astronauts into space to attempt the first private spacewalk. The Polaris Dawn mission, the first of three ...

Today it is fought by private space firms and billionaires ... who had become the first American to walk in space - did perish in a fireball on the launch pad of the Apollo 1 mission.

SpaceX brought back to Earth on Friday the four crew members of the private polar Fram2 mission that launched from Kennedy ...