Sierra Space, a leading commercial space company and defense tech prime that is Building a Platform in Space to Benefit Life on Earth®, announced toda ...

The VR35K-A is a high-performance liquid oxygen (LOX)/liquid hydrogen (LH2) engine that employs a fuel-rich staged combustion cycle, an innovative turbopump architecture and a VORTEX® combustion ...

under contract with Air Force Research Laboratory’s (AFRL), Rocket Propulsion Division, Edwards, Air Force Base in California, marking a major step forward in Sierra Space’s development of ...

The X-15 hypersonic research program was a joint venture between Nasa and the US Air Force - and it led to the creation of ...

SpaceX . The skies over Europe saw a dramatic fireball yesterday as debris from a SpaceX Falcon 9 rocket made an uncontroll ...

Rosatom scientists have developed a laboratory prototype for a plasma electro-reactive rocket engine based on a magnetic ...

Miles above the Earth, two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to influence weather in the northern hemisphere.

So I was thrilled to see the initial designs of Vortex’s new Viper red dot. This enclosed emitter is built from a single piece of 6061 aluminum and mounts directly to the receiver of most shotguns — ...

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

(submitted by EllPeaTea) Lunar lander test-fires uprated rocket engine. The Leros 4 rocket engine, developed by Nammo UK in Buckinghamshire, has successfully ignited in space, powering the Firefly ...

A big reason is we have another lobe of the Polar Vortex that is going to shift south into far southern Canada. This lobe of the vortex will drive very cold air into Michigan Sunday into the first ...