SpaceX’s Raptor 3 engine, built for the upcoming Starship V3 vehicle, now produces 250 tonnes-force of thrust at sea level, according to figures the company has shared publicly. That marks roughly a 9 ...

SpaceX’s Raptor engine and Blue Origin’s BE-4 engine are two key innovations in rocket propulsion, each with its unique design and performance characteristics. While the Raptor engine leverages ...

Robert Zubrin talks about reducing the mass of SpaceX Starship by a factor of 5 for a Starboat mini-Starship. The linear dimensions would scale by the cube root of 1/5 ≈ 0.58. This gives a diameter of ...

The Earth is much larger than most people realize. You need to use engines if you want to efficiently navigate large sections of the planet. Everything from cars to planes relies on engines, but they ...

The sixth flight of SpaceX’s giant Starship rocket, set for takeoff on Tuesday from South Texas, will test the vehicle’s limits in new ways. Most importantly, SpaceX will attempt to briefly reignite ...

SpaceX CEO Elon Musk said on Wednesday that the Raptor engine of its Starship launch vehicle is not perfect and needs a few more changes. What Happened: “Still a few final touches to perfect Raptor,” ...

SpaceX has posted some incredible images showing the Super Heavy booster’s 33 Raptor engines as they powered the Starship rocket skyward at the start of the vehicle’s sixth test flight on Tuesday.