On a quiet August night in 1977, something extraordinary happened in the Ohio countryside that would captivate scientists and ...

Missouri boasts over 7,300 documented caves—more than enough to earn its geological nickname and give claustrophobic people nationwide something to avoid. But among this subterranean abundance, ...

Nearly 13,000 years ago, a vast, hurtling fragment of a comet exploded over the US, according to a controversial theory. Now, scientists have found evidence of this cataclysmic event.