Mars has always captured human imagination with its striking red hues and mysterious landscapes. Recent images from NASA’s Mars Orbiter unveiled a peculiar geological feature that has intrigued ...

A European national park is home to a natural wonder that locals say has swallowed an entire village. Slowinski National Park ...

One of the new bills would expand an existing conservation easement that protects two-thirds of the island from development.

Sea-level rise is threatening San Francisco’s shores. In February, the city began vegetating the sand dunes as part of its answer.