In 1958, just before a ban on atmospheric testing took effect, the United States carried out a highly secret naval operation in the South Atlantic to detonate nuclear devices high above Earth. The ...

In a test at the Idaho National Lab last week, workers were able to turn the reactor on and safely control a nuclear fission ...

Space-based nuclear weapons are a serious matter, and one that deserves the very highest level of national attention.

NASA launched four astronauts on a pioneering journey around the moon—the Artemis II mission. Follow our coverage here. Nuclear power plants are safer than many suspect. But putting reactors in space ...

NASA’s announcement Tuesday that it will “pause” work on a lunar space station and focus on building a surface base on the Moon was no big surprise to anyone paying attention to the Trump ...

The United States and private space companies are advancing ambitious lunar and deep-space programs centered on nuclear power systems. Nuclear technologies, including radioisotope systems and fission ...

Jared Isaacman, Administrator of NASA, speaks at the opening ceremony of the Space Foundation Symposium with a photo as background that was taken from NASA’s recent very successful mission in which ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. A fast nuclear thermal propelled spacecraft enters lunar orbit. It also contains a ...

Shenzhou-21 trio touch down at Dongfeng landing site, now a hub for crewed space missions and commercial aerospace launches The Shenzhou-21 astronauts returned to Earth on Friday after staying in ...