Oldest fossils ever found reveal glimpse of Earth's earliest organisms
August 31, 2016, 6:25 p.m. by Bryan Nelson
A rock formation recently exposed in Greenland contains fossils that are 3.7 billion years old.
9 of North America's most fascinating kettle lakes
May 16, 2016, 4:02 p.m. by Sidney Stevens
These glacial gifts offer a glimpse into our prehistoric and cultural past.
Finding peace with a pack, a trail and lots of time
October 12, 2015, 11:58 a.m. by John Donovan
Thru-hiking is a way of life for substitute teacher and former marathoner Erin Saver.
New lakes discovered under Greenland's ice sheet
January 22, 2015, 10:47 a.m. by Becky Oskin, LiveScience
Monitoring these lakes will help scientists forecast how the ice sheet will respond to global warming.
Farmers' Almanac warns of brutal winter
Why the 2024 total solar eclipse may 'outshine' 2017
Compound that makes your poop stinky could be the fountain of youth
The Great American Eclipse captured in photos
What happens when animals are scared stiff?
7 fire lookout towers where you can spend the night