Isaac Arthur on MSNOpinion

We thought nuclear weapons would end our future - until they started powering it

Project Orion sounds like one of the wildest ideas ever proposed: a spaceship driven forward by detonating nuclear bombs ...
Real Engineering on MSN

A nuclear rocket could reach Mars in 10 days - but it was shut down

Decades ago, scientists developed a radical concept that could send humans to Mars in just 10 days using nuclear propulsion. The idea, known as Project Orion, relied on controlled nuclear explosions ...