They are also simply too slow for deep space travel. According to NASA’s estimates, spacecraft using existing chemical rocket engines will take a minimum of six to seven months to reach Mars.

Since then all the advances have been in making rockets larger and more efficient through innovations peripheral to the rocket engine itself. There are alternatives to chemical rockets ...

The tests involved two 120-tonne liquid oxygen-kerosene rocket engines and one 18-tonne liquid oxygen-kerosene rocket engine. The institute noted that this marks a major advancement in the country ...

Another point of contention is the deluge system, which creates thousands of gallons of toxic wastewater to cool launch pads and rocket engines after testing. While the EPA and the Texas ...

SpaceX's 7th Starship flight didn't achieve all it set out to For the first time, SpaceX flew Starship with a reused Raptor rocket engine. The Super Heavy booster runs on 33 Raptor engines.

SpaceX’s giant Starship rocket blew up in midflight during a ... The second stage was unable to complete the flight test after its engines began to shut off while approaching orbital velocity.

The more than 400-foot rocket, powered by 33 Raptor engines, appeared to lift off successfully at 4:37 p.m. CT from SpaceX's launchpad at its Starbase facility near Brownsville, Texas. But minutes ...

The ship had successfully separated from the booster and had started its own rocket engines to ascend to orbit before it appeared some of those engines gave out. The company then saw its link to ...

That, obviously, did not stick: delays with development of the rocket’s engine, the BE-4, and other setbacks shifted the schedule significantly. It should be noted, however, that Blue Origin has ...

Named after John Glenn, the first American to reach orbit, New Glenn is designed to be that rocket. At that point, the second stage’s three engines light up, taking the rocket the rest of the ...

Huntsville-built rocket engines pushed a new craft into space early Thursday in a milestone for both Blue Origin and NASA’s hopes of a permanent base on the moon. The New Glenn heavy-lift ...