Rocky cliffs run into the Adriatic Sea near Ancona, Italy. There, above the pebbly coast in 2019, rock climbers explored ...

Blooms of yellowish-brown seaweed along the Equator are breaking records and defiling beaches, while a centuries-old patch farther north is disappearing.

Billions of years ago, it rained on Mars. The water collected in valleys and rivers, filled and spilled over the rims of craters, and was funneled into canyons, perhaps even making its way to a large ...

A team of independent investigators says they have identified extensive submerged stone formations off Salmedina Island, near ...