Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
From a waterfall that flows into a mysterious pothole to a lake that drains into the ground, scientists aren't always sure where the planet's water ends up.
'Tree Hunter' Rob McBride travels the U.K. and Europe drawing attention to these ancient giants.
Just being happy isn't enough. What really matters is how you gain your happiness.
Some of the earliest photos ever taken in Mexico show the country in a new light.
Scientists have been monitoring the volcano for 15 years by measuring movements in the seafloor.
Living in a big city certainly has its charms, but light pollution isn't one of them!
The organisms that thrive in the Dry Valleys could give scientists insights into Mars's history.
The quake didn't release all the pent-up seismic pressure between the Indian and Eurasian Plates.
Scientists now have a better sense of the supervolcano's 'plumbing system.'
Volcano in Chile hasn't had a major eruption since 1962, but this one could be seen from 30 miles away.
A new MNN comic explains why we should rename 'Wednesday' in honor of our home planet.
Taking in the beauty of Butte Creek waterfalls is something to put on your travel destination list.
Researchers now have a better sense of sparkling wine production, including a high sugar content.
These psychedelic fungi add a magical element to forests at night.
Add another group to the list of civilizations who re-discovered the New World before Columbus.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.