Underwater caves off the coast of Sicily offer new clues about the island’s first human inhabitants. They may have arrived by ...

Recent findings in southern Sicily's cave sites offer groundbreaking insights into early human migrations in the ...

This week, marvel at giant tube worms living beneath hot springs on the ocean floor, watch SpaceX catch a rocket booster, ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. A mile and a half beneath the ocean’s surface, the ...

Canadian diver Jill Heinerth became the first person to explore caves inside an iceberg in Antarctica alongside her former ...

Custer County, South Dakota, is a place that few folks give much thought to; it’s quiet, and for nature lovers, it’s been a ...

We’ve given you some spectacular snorkelling spots in Cape Town and in KwaZulu-Natal. Now, it’s time to go a little bit ...

A mile and a half beneath the ocean’s surface, the seafloor seems nearly as alien as the surfaces of other planets. Deep-sea volcanic ridges, formed by the collisions of tectonic plates, create ...

Diving through narrow crevices underwater on limited amounts of air may not appeal to everyone, but cave diver Jill Heinerth wants more people to tap into their inner explorer.

Three of Japan’s southern islands have earned UNESCO World Heritage status for their natural wonders — but they are also home ...