For 50 years, astronomers have been watching in bafflement as a giant star flickers with powerful, erratic X-ray emission.

The Great Salt Lake is so named because of the salinity of its water, but a new study appears to have detected a huge ...

After decades of decline in the developed world, tuberculosis (TB) is back on the rise, and increasingly resistant to our best antibiotics.

A sunken Cold War-era nuclear submarine is quietly leaking radioactive material into the deep, dark waters at the bottom of ...

(AP) – After smashing March heat records in 14 states and the U.S. as a whole, the gigantic heat dome that's baked the ...

NASA and the China National Space Agency (CNSA) plan to send astronauts to Mars as early as the next decade. Naturally, this ...

Early signs of Alzheimer's disease may be hidden in the way a person speaks, but it's not yet clear which details of our ...

Earth's climate is more imbalanced than at any other time on record, with 2015-2025 confirmed as the hottest 11 years on ...

A specific microbe found in the human gut appears to be able to boost muscle strength, new research suggests. In a new study, ...

Millions of people have a heart rhythm disorder called atrial fibrillation, which causes the heart's upper chambers or atria ...

When a virus jumps to humans from another species, it can seem like a supervillain bent on world domination – especially if ...

Comb jellies – very simple, gelatinous creatures best-known for their hypnotic underwater light shows – first appeared in ...