The closed-cycle rocket engine design. Image via Wikipedia The ... Improvements were made on the NK-33 including the addition of filters to keep debris out of the engines. Test launches continued ...

This resulted in thrust termination – the rocket’s engines being shut down as a safety ... of the Blok-A – its first stage – with an NK-33. Soyuz has four launch sites worldwide: the ...

The rocket in question was driven by a powerful Russian engine unlike any ever built in the States. Although this particular engine was new, the design dated back to the space age. By the early ...

First flying in 2004, the rocket also featured improved engines on its first and second ... a Soyuz-2-1b – the former re-engined with an NK-33 powerplant – without the four boosters that ...

Update: Astrobotic’s Peregrine lander fell back to Earth 10 days after launch due to a propellant leak that ruled out a moon landing. United Launch Alliance’s next-generation Vulcan Centaur ...

Called the X-33, it was based on a concept called SSTO — or “single stage to orbit.” SSTO does away with the rocket stages of conventional space flight — where rockets containing engines ...

North Korea appears to have started fueling up a long-range rocket and is expected to finish the preparation of the launch in a few days, Japan's Asahi Shimbun reported Friday. It quoted an ...

WASHINGTON (CNN)-- A new satellite image shows North Korea's rocket in flight soon after its launch a few days ago, experts said. The communist nation launched the rocket over the weekend in ...

SEOUL, Sept. 13 (Yonhap) -- North Korean leader Kim Jong-un has inspected a training base for special operations forces and a test-firing of a new 600mm multiple rocket launcher, state media said ...