A newly discovered supercave in Spain stretches 16.5 miles, featuring a 3,000-foot vertical drop. What lies beneath?

Scientists were stunned to find two different spider species peacefully cohabiting in massive 1,140-square-foot web.

Learn more about how scientists uncovered an unlikely community of arachnids in Europe’s Sulfur Cave and why these spiders ...

Serban Sarbu, a cave scientist, thought he’d seen everything — until he entered a pitch-black cave along the Albania–Greece ...

In a recent exploration, scientists have stumbled upon a colossal spider ‘supercity’ in a cave, home to an estimated 100,000 ...

Romanian scientists realized every arachnophobe's worst nightmare after discovering the "world's biggest spider web"-- ...

Researchers have just discovered the world’s largest spider web, spanning over 1,140 square feet and home to over 110,000 spiders. Jenna El-Attar/ Guest Artist Researchers have just discovered the ...

Scientists have discovered a giant spider web spanning about half the size of a tennis court and with some 111,000 spiders in ...

Excerpted with permission from the publisher The Hiroshima Men: The Quest to Build the Atomic Bomb, and the Fateful Decision ...

New Mexico National Parks, Carlsbad Caverns and White Sands National Parks, are impressive and there's a host of other 'national' sites too.