Today’s report into the decisions that led to Nasa’s Columbia shuttle disaster will not pull any punches, officials warned.

Russia’s Soyuz TMA-2 space capsule today successfully docked with the international space station and transferred US astronaut Edward Lu and Russian cosmonaut Yuri Malenchenko.

Investigators probing the Columbia shuttle disaster say they are growing ever more certain that a damaged wing seal brought down the spacecraft, killing all seven astronauts on board.

United States President George W Bush has said that there have been no survivors from the Columbia shuttle disaster that occurred this afternoon.