A return of scramjet and solid-fuel ramjet investment signals a shift in global hypersonic weapon priorities.

A long-term promise of seamless battlefield connectivity finally is being realized in experiments and demonstrations around the world.

2021 promises several milestones in the propulsion arena.

It was a year of successes and failures, of beginnings and endings, for the space community in 2019. Here are some highlights of an eventful 12 months.

Aircraft propulsion advanced across a range of fronts in 2016, from entry into service of Pratt & Whitney’s geared turbofan to progress on distributed and hybrid-electric electric powerplants and supersonic-combustion ramjets.