In the context of this conversation we're talking about thermonuclear explosions in space for power generation, not propulsion. So it being heavy is fine. Orion was meant to be propulsive so that ...

New designs mean new strategies for managing spent fuel. MIT Technology Review Explains: Let our writers untangle the complex, messy world of technology to help you understand what’s coming next. You ...

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

This week, NASA administrator Jared Isaacman announced the agency will be developing the "first nuclear powered interplanetary spacecraft" ahead of a planned 2028 launch to Mars. The ambition of the ...

MIT researchers think they've worked out exactly how Russia's Burevestnik nuclear-powered missile flies. "It's almost certainly a terrible idea," one analyst said. "But it's not an impossible idea." ...

Nasa is developing ways to use nuclear power to send spacecraft to their destinations. Nuclear propulsion could greatly reduce the journey time to Mars, perhaps cutting a voyage of more than six ...