The Wärtsilä 25 ammonia engine, which is available as part of the Wärtsilä 25 engine platform, was developed based on ...

Finnish marine propulsion firm Wärtsilä has announced that its four-stroke ammonia engine now achieves up to a 90% reduction in GHG emissions compared to diesel engines. This breakthrough follows ...

The USA's Defense Advanced Research Projects Agency has finalised an agreement with Lockheed Martin to begin work on the fabrication and design of an experimental nuclear thermal rocket and its engine ...