Artificial intelligence is quietly reshaping how rockets fly, how spacecraft sip propellant and how engineers think about the leap to nuclear propulsion. What began as a set of algorithms for ...

UK-based Pulsar Fusion announced it has successfully achieved first plasma in its Sunbird nuclear fusion rocket exhaust system. The demonstration, a world’s first for a rocket of this type, was ...

A rocket’s cluster of engines firing in flight produces a bright-purple exhaust plume and thick golden smoke against a sunset sky over the ocean. Humans can leave Earth on rockets powered by chemical ...

NASA is backing a new generation of nuclear rockets that could compress the months-long journey to Mars into a sprint measured in weeks. The most ambitious concepts on the table promise crewed trips ...