Located in California's Sierra Nevada mountains, Yosemite National Park is famous for its giant, ancient sequoia trees and impressive rock formations, like El Capitan and Half D...

By Garth Nix

By Chris D'Lacey

This week's severe winter storm, which dumped record amounts of snow in the Mid-Atlantic and the Northeast, had most residents scrambling for the safety and warmth of their home...

Before astronauts land on Mars, scientists must know everything they can about its inhospitable landscape. While the various exploration vehicles dispatched over the years are p...