Sixty-one years after the U.S. launched its first and only reactor into orbit, space nuclear power and propulsion now appear central to U.S. space superiority.

Already facing struggles raising funding, Europe’s aviation startups are calling on the European Commission to look ahead and find ways to bridge the cost barrier to deploying new technologies that would advance sustainability and energy independence.

Collaborative combat R66; NASA open-fan demo; quantum heads to the field; and Sora’s subscale eVTOL bus.

VoltAero founder Jean Botti was betting on a hybrid-electric layout for redundancy and quieter operations near airports, not for decarbonization.

A decade after the last airborne laser trials in the U.S., Israel’s Elbit Systems plans to start flying a demonstrator aboard a Sikorsky UH-60 helicopter.