The concern is that areas of NASA鈥檚 work would be contracted out to private companies and the only projects advanced enough are Musk's SpaceX and Jeff Bezos' Blue Origin. Sky's Tom Clarke reports.
Please use Chrome browser for a more accessible video player
3:07
The US has long planned to return people to the Moon before China does but the lunar project with its over-budget rocket-system is at risk of being cancelled.