Start-up zero-emissions propulsion developer Universal Hydrogen has been forced into liquidation after failing to raise additional funding.

Carbon recycling company LanzaTech and SAF producer LanzaJet have launched an alternative to using technology to convert waste into liquid fuels.

A pilot plant has produced its first quantities of CO2-neutral SAF but warns a reduction in flying still is needed to cut the carbon footprint.

Airbus is conducting a flight-test campaign to study the water vapor exhaust from a hydrogen fuel cell system to understand if it will create a contrail.

Liquid hydrogen (LH2) may be the promised panacea for aviation’s journey to net-zero, but getting there is going to be tough—particularly for the engine-makers.

Boeing subsidiary Wisk Aero has acquired software certification specialist Verocel to support development of its Generation 6 autonomous electric air taxi.

The UK petroleum giant is scaling back plans to develop new sustainable aviation fuel (SAF) and renewable diesel production projects in Europe and the U.S.

Safran has made an investment in Estuaire, a Paris-based start-up company offering software tools to measure aviation's climate impact.