The NASA chief has exclusively told Sky News that the safety of the Artemis II astronauts will not be put at risk despite pressure to get the moonshot programme back on track. The mega-rocket is scheduled to take four astronauts on a historic 10-day test trip around the moon, and there has been pressure on NASA for the mission to go ahead after two previous launches were cancelled due to technical issues. If the final checks and tests are successful - and the weather forecast remains clear -