An international team of researchers has uncovered evidence that astrophysics models of massive stars and supernovae are inconsistent with observational gamma-ray astronomy. The team investigated ...

Vladimir Putin convinced many in Russia that there was an existential battle against the U.S. Now they have to deal with a thaw in U.S.-Russian relations.

At some point, melting ice in the North Atlantic—caused by increased global warming—will cause so much freshwater to be ...

The Earth possesses virtually inexhaustible reserves of the raw materials—deuterium and tritium—essential for a fusion ...

Vladimir Putin right now has in his sights nearly 300 pre-deployed atomic weapons set to easily launch a radioactive ...

Coastal erosion from rising sea levels has led to the collapse of 280 buildings across Alexandria, Egypt, over the past two ...

Chinese scientists sustain plasma at 100 million degrees C for 1,066 seconds in EAST, advancing nuclear fusion research.

During nuclear fission, an unstable uranium atom is split in half ... A single kilogram of uranium-235 (the most popular fissile isotope of uranium) can theoretically produce the same amount ...

But a relatively unstable form of carbon with two extra neutrons, called carbon-14, decays into other elements called "daughter isotopes" over time. The amount of time it takes to decay is so ...