Russian engineers are betting that a radically different rocket engine can compress the long slog to Mars into something closer to an interplanetary commute. Their new plasma propulsion prototype, ...

SEOUL, South Korea — North Korea said Tuesday it had conducted the final ground test of a solid-fuel rocket engine for a long-range ballistic missile in its latest advancement toward having an arsenal ...

In response to a query from Ars about the engine test anomalies, Rocket Lab Chief Executive Officer Pete Beck downplayed concerns.

North Korea's test of a rocket engine Sunday showed "meaningful" signs of progress, according to South Korean officials. "Through this test, it is assessed that (North Korea) has made meaningful ...

Welcome to Edition 8.10 of the Rocket Report! Dear readers, if everything goes according to plan, four astronauts are less than six months away from traveling around the far side of the Moon and ...