Interstellar Technologies ZERO rocket engine test-fired at Hokkaido Spaceport in Taiki, Hokkaido. It is fueled by liquid biomethane. Credit: Space.com | footage courtesy: Interstellar Technologies | e ...

However, the scale of interstellar distances renders direct ... On the theoretical side, stellar engine concepts have been proposed but are poorly linked to observable technosignatures,” Vidal ...

Interstellar objects are among the last unexplored ... show that Neural-Rendezvous could benefit from a multi-spacecraft concept." To theoretically justify the empirical observations from the ...