Cathay Pacific Group has executed a $4bn purchase agreement with Airbus for 32 A321neo single-aisle aircraft.

The aircraft to be delivered under the deal will be operated by Cathay Pacific’s regional carrier Cathay Dragon on routes between Hong Kong and destinations across Asia.

Nasa has provided funding to HRL Laboratories to support the development of ceramic rocket engine components.

As part of Nasa’s Space Technology Research, Development, Demonstration and Infusion programme, the investment will allow HRL Laboratories to produce reinforced ceramic rocket propulsion components using additive manufacturing or 3D-printing technology.