The Romans Called it ‘Alexandrian Glass.’ Where Was It Really From?

Ancient Rome Was Teetering. Then a Volcano Erupted 6,000 Miles Away.

Long Limbs Helped Propel T. Rex Up the Dinosaur Food Chain

The Invasion of Antarctica Begins With Mussels

Microbes Point the Way to Shipwrecks

They’re Stealthy at Sea, but They Can’t Hide From the Albatross

Earth’s Oldest Asteroid Impact Found in Australia

Hints of Phantom Crater Found Under Volcanic Plateau in Laos

Boulders Don’t Just Roll. They Bounce.

Cannibalistic Dinosaurs Went Through a Lot of Teeth

How Stalagmites Get Their Shapes

In the Blue Holes of the Bahamas, Secrets of Hurricanes Past

The Most Powerful Lightning Bolts Strike in Unexpected Places

A New Timeline of the Day the Dinosaurs Began to Die Out

A Supernova Was Hiding in Antarctica’s Snow

Peering Beneath a Source of El Capitan’s Deadly Rockfalls