461: St Patrick, patron saint of Ireland, dies this day in 461, according to legend; his feast day is now celebrated widely ...

It's almost inevitable that New England communities will be facing dirtier air and dirtier water,” said Brad Campbell, ...

A supernova — the explosive death of a massive star — can leave behind a black hole or neutron star. These cosmic blasts are element factories, spreading carbon, calcium, and iron across space, ...

"If a massive star were to explode as a supernova close to the Earth, the results would be devastating for life on Earth," said Nick Wright, an astrophysicist at Keele University in the United Kingdom ...

California’s Proposition 65 (“Prop. 65”), the Safe Drinking Water and Toxic Enforcement Act of 1986, requires, among other ...

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A new threat is here, and scientists say there's no way to stop it, as even remote parts of the world are seeing microplastic ...

Clean air has become one of America’s best investments, returning $10 for every $1 spent on regulations, by one estimate.