The post-war international order may be tearing apart at the seams and international law is increasingly looking like a ...

Add Yahoo as a preferred source to see more of our stories on Google. Russia insists if any country abandons the moratorium to prevent tests on weapons they will ‘act accordingly’ - SOPA Images The ...

NASA engineers have completed first cold-flow tests of a full-scale nuclear thermal propulsion reactor, validating designs ...

In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global nuclear arms ...

Nuclear propulsion and power technologies could unlock new frontiers in missions to the moon, Mars, and beyond. NASA has reached an important milestone advancing nuclear propulsion that could benefit ...

US President Donald Trump landed back in Washington Thursday after a surprise directive to begin nuclear weapons testing that raised the specter of renewed superpower tensions. The announcement on ...

Cold-flow tests at NASA Marshall demonstrated the stability of a nuclear propulsion design aimed at reducing travel times to the moon and Mars.

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

DUBAI, United Arab Emirates (AP) — President Donald Trump’s comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...