Two killed in blast at Branson rocket firm in US

A huge explosion killed two workers and critically injured four others at a Mojave Desert airport site used by a pioneering aerospace company linked to Richard Branson’s Virgin Galactic space tourism business.

Last night’s blast at a Mojave Air and Space Port building belonging to Scaled Composites, which sent the first private manned rocket into space, released nitrous oxide, or laughing gas, into the air.