Former astronaut Alan "Dex" Poindexter, 50, a space shuttle commander who flew twice into space, died on July 1 after being injured in a water sports accident i

Space shuttle Endeavour's trip to California has been delayed by a weather front in its way.

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

Space shuttle Endeavour, now a permanent resident of the state of California, has traded its winged chariot for a set of custom wheels.

Space shuttle Endeavour has hit the road in Los Angeles to start its two-day journey to its new home.

Amidst much fanfare, the new museum display featuring retired space shuttle Endeavour opened to the media and invited guests here on Oct. 30.

The massive, potentially rocky planets orbit in the "habitable zone" of a star 22 light-years away.

California approved new rules that require new homes and low-rise apartment buildings to use solar panels starting in 2020.

A new report provides a possible scapegoat for BP in last year’s oil spill. Investigators say the blame for the disaster does not lie with BP but instead with

The 2010 BP oil spill left a lasting legacy that the National Wildlife Federation says is still killing animals in record numbers.

Jason Alexander Byers uses an unusual material to make an environmental point.

Mother's Day gift guide. 14 eco-friendly gifts that will please mom -- and Mother Nature.

Mother's Day gifts. Psst ... Mother's Day is just around the corner. Honor your Mom with a gift that both she and the planet will love.

Mother's Day Gift Guide 2010. While Mother Nature is the main event this week, don't forget that there's another Mother-celebrating day just around the corner..

Mother's Day gifts that fill up mom's heart, not her trash can.

MNN has assembled a 2010 guide to great, affordable green gifts that Mom will love.

Green guru Elizabeth Rogers offers tips for saving money on Mother's Day.

While Mother Nature is the main event this week, don't forget that there's another Mother-celebrating day just around the corner...

11 planet-friendly presents that are guaranteed to delight eco-conscious moms.

While Mother Nature is undisputedly the center of attention this coming weekend, don't forget that there's another Mother-celebrating Sunday on the horizon ...

It feels great to celebrate and give back to our moms, and they deserve it, so the pressure’s always on when Mother’s Day pops up. You want to find somethin

So that you don't wind up gifting an awesome mum something too sentimental and/or last minute, a few singular Mother's Day gift picks ...

A regular marathon will sound like an easy warm-up compared to these crazy yet compelling endurance races.

Rhabdomyolysis is rare, but if your workouts cause extreme soreness or swelling, check with your doctor.

These half-dozen exercises will help you shed pounds if obesity is in your genes.

Running doesn't have to be a struggle. Here's how to become a runner for life.

This high tech billboard can do the work of 1,200 trees, scrubbing the air of pollutants.

Your health is influence by the humidity of your home so pick the right machine for your home and your needs.

Research found no major difference in asthma rates of inner-city kids and those in other communities.

The WELL standard picks up where LEED and other standards fear to tread.

It's a breakthrough that scientists around the world have been pursuing for years.

Falling levels of air pollution have resulted in a drop in California's dense tule fog.

Here are the world's rarest animals, the loneliest creatures on Earth: 8 species with fewer than 10 confirmed individuals left alive.

Even core areas of pika habitat 'are vulnerable to climate change within a timeframe of decades,' researchers say.

If humans are still around millions or billions of years from now, they'll have to deal with supervolcanoes, asteroids and worse.

Do you have friends who are always throwing parties? We've got the tools to make them happy.

Lifestyle blogger Kate Richards opens up about the feathery inspiration behind her boozy masterpieces.

Diluting whisky makes it more flavorful, according to a study out of Linnaeus University in Sweden.

The discovery of huge amounts of water ice and possible organic compounds on the heat-blasted planet Mercury suggests that the raw materials necessary for life

By analyzing ear wax from a deceased blue whale, scientists gained clues to years of chemical exposure.

Mercury, named for the Roman messenger of the gods, is the smallest planet in our solar system and the closest to the sun. Check out these amazing images

From paws and hooves to claws and talons, a variety of animal feet walk upon the Earth. Can you recognize the animal based on its foot alone?

The 57,000-acre San Andres Refuge, which works to restore desert bighorn sheep, launched its quest for energy independence in 2005 and has implemented several s

Moose are increasingly unleashing their frustrations on hunters, motorists and lawn mowers.

Electronic waste recycling firm CloudBlue is now an e-Stewards Certified facility.

The ultrathin New Apple MacBook laptop has been called one of the "least repairable, least recyclable" computers on the market. Sustainability was not included

A wildlife corridor in Brazil's Atlantic Forest will help animals like the golden lion tamarin thrive in its preferred environment.

Wildlife underpasses and overpasses have reduced animal-related car crashes in Colorado.

The UP North Loop offers a unique but daunting tour through an array of wild landscapes.

Refuge protectors weigh in on the shutdown's impact.