Overview
Scientists Solve the Mystery of a 300-Year-Old Megaquake
Scientists find the exact time of a massive quake using trees, soil and human records.
Latest in
Overview
Sponsorship
Overview
What Happened to America’s First Megacity?
Can new scientific research help unravel the mystery of Cahokia's disappearance?
Overview
What happened to the once lush, now desert-like Colorado River Delta?
What happened to the once lush, now desert-like Colorado River Delta?
Overview
Why This Unusual Pattern May Save the Rainforests
How is this groundbreaking experiment in Ecuador helping deforested rainforests recover?
Overview
How Otters Are Saving Earth’s Underwater Forests
Sea otters play a vital role in maintaining the balance of sensitive kelp forests.