Photographer Josh Hydeman has made it his mission to illuminate America's caves and spark interest in what lies beneath.
Business-ready in and out of the water.
It's a long story involving snow gods, the director's next film, and big money for the ski town. Take a seat.
Performance wear that makes you the canvas
See Old Faithful erupt in person or on your phone
Europe's lowlands are becoming the mecca of solar-powered bike paths. We especially like this take on Van Gogh’s most famous work.
New safety measures appease NPS
Dozens of visitors approach animals for photos
Review site offers 28,000 companies' services through online booking portal
Shot by son-in-law while tangling with bear
Similar to compound banned for major health risks
Went missing Wednesday on the Maroon Bells
New film series envisions nature as force, not victim
The plushest home on four wheels
Finishes more than an hour ahead of next woman
Two-thirds of planet absent from program
Marathon-racing CEOs linked to more valuable firms
Population could reach 12.3 billion by 2100
Drug cartels no longer barrier to enjoying "most dangerous national park"
State law requires 3-foot buffer from cars
Rainforest structure will be tallest in South America
Formula E series kicks off with a crash
But don't cry into your brew just yet
Find and charter a captain who floats your boat
Wants hikers to get off the grid by bringing it with them
Faces fines up to $18 billion
New analysis offers dire forecast
Fans can donate up to $500 at a time
Japanese capital tops survery list, with Rio de Janeiro at bottom
Bayou expected to disappear in the next 50 years
Beginning September 15
US Airways flights to be withdrawn September 1
This cruel new wearable will shock you if you don't exercise.
"No Turning Back" tour begins October 18
While wearing Rapha, riding Specialized
Help U.S. earn 14 golds, lead medal count
Mountain biker jumps 100 feet, 3 inches
Animal blamed for 7 deaths
28 bike flats caused by tacks strewn along route
Discovery might halt future Mojave Desert solar installations
Aims to purchase 28 new tankers
Plans to nearly double the size of its San Diego killer whale environment
Illegal rhino killings up 7,623% in six years
When it comes to staying hydrated, you need the right bottle for any activity.
What's next for the maker of portable solar products
Premie arrives in an alpine meadow
Google's FASTER project will double connection speeds
One man and his canine pal cover 13,000 miles in 32 states to discover just how strong our relationship is with man's best friend.
Phones detect sounds of illegal logging
First of two tropical cyclones hits today
Demand for almonds up 220% since 2005
Repeated warnings ignored
Bass-heavy music empowers, boosts performance
British climate projections show impact on global resources.
Death by flood less common than by lightning
No environmental hazards or foul play suspected
Man biking 1,840 miles against doctors' orders
Gentle giants save more than 850 lives annually
But you have to go vegan
Thanks to a $2.4 million bike path, not Putin
If there's attention being doled out, your dog wants it.
Walk the 1,800-foot bridge, then leap overboard. If you dare.
World's third-largest facility funded, designed, made by Americans
UAVs are heroes when it comes to protecting the environment
$1.3 million Exosuit will take divers to depths of 1,000 feet
New fees take effect today
New technology identifies bird songs
It costs only $3 million, but there's a catch
State will impose emergency bans on wasteful practices in August
Crowdfunding project to create year-round indoor facility
Spartan Racing, Reebok, and NBC announce multiyear rights deal
Contador becomes the second prerace favorite to exit
Three plane fuselages in a Montana river might seem like a problem, but there’s more to the accident than meets the eye.
Train? Nah, just falsify your qualifying times
Company to host gourmet 3D-printed meal with robot waiters
And why ordering first is best
But only if we stop overfishing
Lost bags, delayed flights, and a lack of transparency
World's largest subterranean jump park opens Friday
Introduces "Happiness Blankets" to monitor passengers' brainwaves