Video of the sightseeing helicopter careening into the Hudson River suggests a catastrophic failure of a rotor, experts said.

Supervolcanoes are one of nature’s most destructive forces, capable of reshaping entire continents. But what would actually happen if one erupted? From catastrophic climate effects to global chaos, ...

Investigate the groundbreaking and potentially catastrophic scientific hypothesis exploring the possibility of space-originated microorganisms accidentally contaminating Earth's delicate ecosystem, ...