The United States flew a reactor in space in the 1960s and has studied nuclear thermal propulsion for decades. Fuel is not the primary limitation either; the enriched uranium supply chain is ...

Following Russia’s recent announcement of a successful test of its nuclear-powered cruise missile, the world has been abuzz with discussions about the technology behind these missiles and their ...

Nuclear rockets are moving from Cold War concept to near-term hardware, and the shift could reshape how quickly and safely humans cross the solar system. By pairing compact reactors with efficient ...

Every year, companies and space agencies launch hundreds of rockets into space—and that number is set to grow dramatically with ambitious missions to the moon, Mars and beyond. But these dreams hinge ...