North Korea tested a new high-thrust solid-fuel missile engine, signaling progress toward faster, harder-to-detect ICBMs.

All but two of the rocket's 33 Raptor engines were engaged during the critical test, which SpaceX CEO Elon Musk says is still enough for an orbital launch. Reading time 3 minutes SpaceX performed the ...

An earlier test of the same booster in July resulted in a giant fireball that sent the prototype back to the factory for repairs. Reading time 3 minutes Engineers at SpaceX have performed the first ...

When it comes to rockets, a “static-fire engine test,” by definition, means that the rocket should remain on the ground and not move. But during such a test in China on Sunday, that clearly didn’t ...