Olivine is a miracle green rock that absorbs carbon dioxide naturally from the air.

Which form of travel gives off the fewest emissions? Let's just say it pays to carpool.

This report highlights 25 apes, monkeys, lemurs, lorises and other primates on the brink of extinction.

A major milestone for the Planet 100 team .. 100 episodes. Woot!

Among other things, Rob Kutner thinks we're on the verge of a new Ice Age.

Flying paper airplanes has never been this fun.

NASA is looking for someone to protect us from alien microbes — and the rest of the solar system from ourselves.

Instead of running errands, Tom Wagg used his one-week internship to earn a place in history.

Despite BP’s spill, energy legislation is unlikely to bring a reckoning to the true price of oil.

Previously in development at Sony, the film rights to the eco-superhero are now being jointly pursued by Leo and Paramount.

Nonprofit, cofounded by media mogul Ted Turner, has been an instrumental force in supporting global environmental education since 1991.

Legendary naturalist and broadcaster urges humanity not to 'lose its connection with the natural world.'

The Nature Conservancy wants everyone to enjoy the earth this Earth Day by gathering outside to enjoy a meal. We've got some ideas to make sure your picnic hono

In honor of Earth Day's namesake orb, here's a time-lapse tour of Earth itself.

Join Aveda in setting an Earth Day world record.

We asked Carla Hall, Mayim Bialik, Andy Richter, Izabella Miko about their Earth Day plans.

How much money and energy do you spend each year powering the gadgets in your home? This infographic breaks it down for you.

Thought-provoking documentary weaves together stunning imagery with enlightening interviews to show how connected we are to our planet.

Max creates bold, iconic posters for events like Earth Day and groups like Greenpeace.

Solar Foods is set to unveil a fully sustainable, carbon-neutral food that can be produced anywhere.

Wearable air conditioners may help wean us off our emissions-happy ways.

They were the first to bring us the modern automobile as we know it, so it only makes sense that Ford Motor Company is now ushering in the future of mobility.

'Death Star' Vaporizes Its Own Planet: 1st Evidence

Astronomers have used instruments on board SOFIA, the world's largest airborne observatory, to examine a planet beyond solar system.

New Dwarf Planet In Our Solar System May Be The Farthest One Yet

For the first time ever, astronomers have directly observed planets in the process of being born.

Mars may one day have rings similar to Saturn's famous halo, new research suggests.

Researchers will likely never know what happened to the crew of the Catalina PBY-5.

This opposition, which occurs every 2 years, is considered relatively favorable and precedes another event when Mars will be at its closest to Earth all year.

Researchers have found a rocky planet, GJ 1252 b, that's just 66.5 light-years away and it's zipping around a red dwarf star.

Scientists are studying new data from the Hubble telescope showing that planets with the density of cotton candy exist and they're called Super-Puffs.

NASA's Planet Hunter, TESS, discovered its first potentially habitable Earth-sized planet called TOI 700 d, located 100 light-years away.

While he was a NASA intern, Wolf Cukier discovered a planet while combing through data from the TESS satellite.

KELT-9b's star-like qualities include melting iron and smashing hydrogen molecules, meaning this is not a habitable place.

Astronomers have found a mini-moon called 2020 CD3 in Earth's orbit, but it won't be around for very much longer.

Learn simple tips to go green around your home and during the day from Laura Turner Seydel.

Laura Turner Seydel offers easy daily transportation tips to lessen your impact.

Learn how to make eco-smart decisions at home.

Learn what is green in the stimulus package.

Learn about the characters in Ted Turner's classic environmental animated series, Captain Planet and the Planeteers.

In the past, this season has brought bad news to nuclear power advocates. This year, everything is turning up roses.

A new device that takes K-Cups apart has the potential to keep millions of single-use pods out of landfills.

A major new study examines the impact of certain foods on both the body and the planet.

Solazyme is making great strides with its biofuels, but their potential impact on greenhouse emissions shouldn’t be exaggerated.

From virgin lands that scientists want to study without human interference to super-secret military bases, you'll never go to any of these amazing places.

When it comes to aviation accidents, bad weather and human error are often to blame.

Depending on how the statistics are sliced, private planes may be even more dangerous than the leading cause of transportation deaths in America: cars.

NASA’s projects are radically redesigning passenger aircraft to reduce fuel use and pollution.

A pair of British pilots recently pulled off a daring aviation stunt, becoming the first to fly two planes in formation through a building.

Solar Impulse 2, the solar-powered plane, traveled across four continents, three seas and two oceans with Bertrand Piccard, Andre Borschberg at the helm.