In a groundbreaking development, Ohio State University has unveiled a new concept for nuclear thermal propulsion that could significantly cut down travel time to Mars. Building on past space ...

During the Cold War the U.S. considered putting nuclear weapons on balloons and letting them float into enemy territory for a strike.

As Russia threatens atomic attacks on Ukraine and its Western allies, and prototypes a nuclear-armed spacecraft, space powers across Europe are racing to defend against nuclear strikes in orbit.

NASA and the U.S. Department of Energy on Tuesday announced a renewed commitment to developing a nuclear fission power system for use on the Moon, a move aimed at supporting long-term lunar ...