As the cloud cleared, Air Force bombers dropped in to gather air samples. Researchers hoped that the radioactive fallout ...

Scientists and engineers are diligently working on innovative concepts to make the next era of human spaceflight more powerful and more efficient using nuclear propulsion. One of these designs, known ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Shown here is a one-eighth scale ...

SEOUL, South Korea (AP) — 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 ...

A new version of SLS's solid rocket booster had a bit of a hiccup. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An upgraded version of one of ...

HELSINKI — Chinese launch startup Landspace carried out a breakthrough static fire test Friday as it builds towards an orbital launch attempt with its Zhuque-3 rocket. The nine engines of the Zhuque-3 ...

Introduction -- Rocket engine fundamentals -- Nuclear rocket engine cycles -- Interplanetary mission analysis -- Basic nuclear structure and processes -- Neutron flux energy distribution -- Neutron ...