A potentially dangerous hydrogen gas leak during fuelling yesterday caused yet another delay for space shuttle Discovery’s final voyage — possibly until the end of the month.

A RUSSIAN rocket set to carry a three-person US-Russian crew to the international space station was moved yesterday to a launch pad in preparation for blastoff.

SPACEWALKING astronauts unhooked a 35,000-pound girder from the international space station yesterday, starting the process of moving the solar power tower to another part of the orbiting outpost.

Astronauts aboard space shuttle Discovery and the international space station joined forces, linking their ships and kicking off the biggest construction job ever attempted by a single team in orbit.