Miles of air cover Earth. The boundary between Earth's atmosphere and outer space, the Kármán line, is about 62 miles (100 ...

Generative AI could saddle the planet with heaps more hazardous waste than ever before.

Black holes have captivated scientists for more than a century. How well do you know these supermassive wonders of the universe?

This bright green sea creature contains a toxic pigment that protects it from predators, kills bacteria and determines the ...