Gone but not forgotten, these once-bustling mining outposts offer visitors a look at Old West ghost towns, from kitschy to untouched.

The nascent asteroid-mining industry is set to take its first steps into space this summer.

Worth more than $1 million, this gemstone is distinguished for its rich color palette and light-refracting qualities that defy description.

An eye-catching community sauna is a symbol of rebirth for the arctic mining town of Kiruna, which is being forced to move 2 miles to the east.

Energy prices are going to get more expensive for all of us, but low-income households shouldn't have to shoulder the burden. Here's how we can help them.

Congratulations, washing machine, your lonely days are now over as clothes dryers have become, at long last, eligible for Energy Star certification.

Complimentary or not, Thomas Paino welcomes the attention being lavished on his super-efficient Long Island City rowhouse.

To chill or not to chill? For these items often found in the refrigerator, the answer ranges from 'not always' to a resounding 'never!'

New research finds that exposure to mildly cooler temps may be the key to shedding pounds.

Who said old houses can't learn new energy-saving tricks?

Months ahead of the UN Climate Change Conference, French Parliament approves aggressive new commercial building rules.

If you love the idea of long-lasting LED bulbs but not the price, this one-day Amazon Gold Box Deal may put these energy savers in your price range.

More than 7,000 cities in 172 countries are expected to take part in the one-hour event on Saturday.

A new online investing platform will fund energy-efficiency improvements for churches and nonprofits in poor neighborhoods.

New EPA regulations will clean up the biggest problem with burning wood: pollution and particulates.

We can't just build better; we have to change the way we live.

The era of 900-watt-and-higher vacuum cleaners comes to an end in the European Union due to new efficiency standards.

With California-based OhmConnect, it's easy being green when you're also earning green.

In a place where the streets flood with sewage after it rains, salvation may come in the form of a park.

Scenes of devastation along the state's Indian River Lagoon show hundreds of thousands of dead fish.

William Henry Harrison, James K. Polk and Zachary Taylor all died under suspicious circumstances.

Populations of the mosquito-like bug have exploded around India's Taj Mahal because of unchecked pollution.

Those who live in the Quebrada Camarones region of South America's Atacama Desert have a remarkable resistance to arsenic, which is in the water.

Paddlers Paul Twedt and Michael Anderson started their Three Rivers Project to clean up Minnesota's three largest rivers.

Conservation photographer Ben Von Wong's striking photo campaign aims to raise awareness of how microfibers from our clothes pollute the world's water.

Untreated, unfiltered water is a pricey new trend that many are buying into — even though "raw" water could really cause you some harm.

159 coral reefs were examined in the Asian-Pacific region, and 89 percent of those reefs were contaminated with plastics and disease.

The Nature Conservancy teams with the Archdiocese of Washington to curb urban runoff at a 150-year old cemetery.

Even the Great Blue Hole in Belize, one of the world's largest sinkholes, isn't immune to human pollution.

Sewage in Mumbai's Thane Creek makes the city attractive to thousands of migrating flamingos, even though it's a turn-off for humans.

Spanish endurance athlete Antonio de la Rosa is the first to cross the Pacific on a paddleboard.

It took a surprising amount of engineering magic to build a coffee cup suitable for those in zero gravity.

This week, NASA is paying tribute to fallen astronauts who lost their lives in the pursuit of space exploration by holding a remembrance ceremony today (Jan. 26

Launching of the Dragon capsule will mark a significant step forward in the partnership between NASA and the private sector.

After 467 days in orbit and a ticker-tape parade, a special litte astronaut will live out its days at the National Air and Space Museum.

The first 'A' in NASA's acronym name — Aeronautics — will play a leading role in the final flights of its recently retired shuttle program. Space agency jet

The modified-Boeing 747, known as the Shuttle Carrier Aircraft (SCA), touched down at NASA's Kennedy Space Center here on April 10. The jumbo jetliner came in f

Dailey, director of the museum, in a statement released Monday. "At the Udvar-Hazy Center, Discovery will be seen by millions of people in the coming years, esp

Residents of the Big Apple may catch sight of an unusual sight over their famous skyline this week: a NASA space shuttle riding atop a jumbo jet.

NASA's prototype shuttle orbiter Enterprise, which had been on display at the Smithsonian National Air and Space Museum since 2003, is set to fly to the Big App

Space Shuttle Enterprise, mounted atop a 747 shuttle carrier aircraft, flies over New York City prior to landing at John F. Kennedy International Airport on Apr

Space shuttle Enterprise suffered minor wing damage on June 3 when it collided with the navigation guides for a New York railroad bridge during the first half o

Hundreds of eager spectators lined Manhattan's West Side Pier 84 on June 6, as the space shuttle Enterprise completed the final leg of its journey to the Intrep

Debuted earlier this month at the International Space University, this short film invites a new generation to imagine and explore the universe's secrets.

Visitors can get up close and personal with two space shuttles, the launch pad and much more.

NASA deployed a few high-flying paparazzi to Hollywood to scout out the best photo spots for next month's arrival of one of its biggest stars: space shuttle End

As the space shuttle Endeavor is poised to come to Los Angeles, crews will remove about 400 trees to make room for its passage.

Space shuttle Endeavour's highly anticipated arrival in Los Angeles has been deferred by a day.

The space shuttle Endeavour will begin a three-day trip across the United States on Sept. 19, and you can catch some of that journey —the final piggyback flig

The space shuttle Endeavour takes to the skies above California for its last-ever flight today, Sept. 21, giving observers from Sacramento to Los Angeles a one