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The mystery of our solar system's 'great divide' may finally be solved

What caused the planets to neatly divide into terrestrial and gas giants? Scientists believe they now have the answer.




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We just got a treasure trove of photos of the 'dark' side of the moon

China releases a massive batch of images from its mission to the far side of the moon.




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NASA video reconstructs the harrowing lunar journey of Apollo 13

Using images from its Lunar Reconnaissance Orbiter spacecraft, NASA reveals the moon's 'dark side' in 4K as observed by the Apollo 13 astronauts.




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Meet the women of NASA

Video highlights the history-making women at NASA for Women's History Month.




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When you have 5 generations under one roof, the club sandwich metaphor has to grow up

Multi-generation living may get even more multi-generational if current demographic trends — like boomers aging — continue.



  • Remodeling & Design

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What will happen when 20 percent of the population is over 65?

In Japan, they call it "rougai." In North America, the rage against older generations is about to get much, much worse.



  • Fitness & Well-Being

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Falls may soon be the biggest cause of death

This isn't an aging problem, it's a design problem.



  • Fitness & Well-Being

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Running just 10 minutes a day can reduce your risk of early death by 27 percent

Who says you can't outrun old age?



  • Fitness & Well-Being

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Real-life Willy Wonka drives up cost of cocoa

Commodities trader stockpiles crops and bets on high futures.




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Number of farmers markets jumps 16 percent

In the past year, the greatest increase in farmers markets has been in the Midwest.



  • Organic Farming & Gardening

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Trader Joe's offers food, produce -- and mystery

Executives keep a tight lid on the secret to successfully selling grocery staples to the masses.



  • Sustainable Business Practices

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Watch: Tips for getting the most out of the farmers market

MSNBC offers some useful tips for making a trip to the local farmers market more productive.




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Local Farms, Food and Jobs Act aims to increase production of local foods

A new bill seeks to make fresh, healthy food more accessible to consumers and support the farmers who grow it.




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How many of us live in 2 food worlds?

We may aspire to eat like foodies, but in reality, we often reach for 'familiar' fare.




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Doctors prescribe fruits and vegetables instead of pills

You can fight obesity, reduce hunger and support your local farmers — all at the same time.




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Death of a river: The Colorado River Delta

Video: Alexandra Cousteau and Expedition Blue Planet follow Colorado's dry riverbed to its historic mouth in the Upper Gulf of California.



  • Wilderness & Resources

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Age of limits: 21st century water management

Video: Alexandra Cousteau investigates The Hoover Dam and the draining of Lake Mead.



  • Wilderness & Resources

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Interview: Jennifer Pitt, Director of the Colorado River Program

Alexandra Cousteau speaks with Pitt, who points out we have hit the age of limits on the Colorado.



  • Wilderness & Resources

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Clean coal? The price of water pollution

Video: Alexandra Cousteau revisits the TVA Kingston Coal Ash Spill, which was six times larger than the Gulf oil spill.




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Ocean of doubt: Polluted waters, broken communities in Louisiana

Alexandra Cousteau revisits Scott St. Pierre in Louisiana and learns how he and others are coping with the oil spill.



  • Wilderness & Resources

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Urban watersheds: Runoff to renewal in Toronto

Alexandra Cousteau searches for the lost creeks that now flow under Toronto roadways.



  • Wilderness & Resources

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Green Dog of the Year Contest: Meet the dogs of MNN

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula




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10 Halloween costumes made of cardboard

Whip up some cool Halloween costume ideas, starting with simple cardboard.




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These DIY ornaments add a touch of nature

DIY Christmas ornaments add nature to your decorations




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Share the love with DIY random acts of kindness rocks

Send love into the world with a little bit of creativity and paint.



  • Arts & Culture

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How to make a greenhouse out of windows

Matt Pember shares an excerpt from his new book that shows you how to make a miniature greenhouse using old windows.



  • Organic Farming & Gardening

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Tesla wins 'Chu prize' of $465 million

Despite lawsuits, the DOE awards the all-electric auto manufacturer its first big government loan.



  • Gadgets & Electronics

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Cool roofs: Basking in reflected glory

The U.S. Energy Department wants you to save green by painting your roof white -- as long as it doesn't make your neighbors see red.



  • Remodeling & Design

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DOE announces $80 million for biofuels research

Two groups have received $80 million in funding from the ARRA for advanced biofuels research.




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DOE awards $24 million to algal biofuel projects

The U.S. Department of Energy recently awarded $24 million to three algal biofuels research projects.




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Obama on the offensive to claim credit for electric vehicles

Administration stimulus spending has jump-started an unstoppable EV revolution, says President Obama. Because of the Recovery Act, the cars will plummet in cost




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Offshore wind power: Feds announce $50.5 million in funding for mid-Atlantic project

Turbine sites in Delaware, Maryland, New Jersey and Virginia identified as prime parcels for projects.




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GOP wins battle of the bulb

Republicans in Congress have delayed part of a 2007 law that would require U.S. light bulbs to be more energy-efficient, scoring a symbolic victory.




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GOP senator warns of Solyndra 'knee-jerk'

Breaking from many in her party, Alaska's Lisa Murkowski says 'there is a role' for the federal loan program that financed the now-bankrupt solar firm.




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Stevens Institute of Technology takes 2015 Solar Decathlon by storm

The third time's a charm for the resiliency-minded contender from New Jersey.



  • Remodeling & Design

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A little boy spends his birthday savings on victims of Hurricane Dorian

6-year-old Jermaine Bell cashes in his Disney World Fund to buy hot dogs and water for hurricane evacuees.




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Tiny vignettes of garden beauty come to life in these macro photos

The International Garden Photographer of the Year honors 16 photographers for their macro images of plants and animals.



  • Organic Farming & Gardening

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These California succulents are at the center of a massive smuggling ring

There's a poaching ring focused on some succulents in the genus Dudleya, which can fetch millions on the black market in East Asia.



  • Organic Farming & Gardening

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North Dakota woman donates 3,727 pounds of vegetables from community garden

Gardener Donna Stumphf wanted to grow a few vegetables for the needy and ended up with more than 1.5 tons.



  • Organic Farming & Gardening

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'The Well-Placed Weed' honors the work and legacy of the late gardener Ryan Gainey

A documentary introduces world-renowned garden designer Ryan Gainey, who was a self-taught visionary who had a distinctive style — and complex relationships.



  • Organic Farming & Gardening

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BPA found in wide range of canned goods

Video: A study conducted by Consumer Reports found BPA in almost all of the 19 name-brand foods tested -- from juice to chicken soup and tuna fish -- raising co




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Poor timing may doom offshore drilling plan in Southeast

North Carolina, Virginia and South Carolina may have something to gain when it comes to offshore drilling, but the events of 2010 remind us that they also have




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New study finds Hurricane Sandy responsible for spilling 11 billion gallons of sewage

The winds and waves of Hurricane Sandy spilled enough sewage to match BP's oil spill more than 50 times over.



  • Climate & Weather

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What's the impact of not recycling in the bathroom?

See how much plastic you can keep out of landfills if you start recycling in the bathroom today!




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Styrofoam containers squeak back into NYC's waste stream

A fleeting ban on the ubiquitous landfill-clogger is overturned by a Manhattan judge.




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Styrofoam-eating worms can fight plastic waste

Mealworms are able to safely subsist on a diet of polystyrene, researchers have found.




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Rescuers take plastic fork out of sea turtle's nose

The turtle survived, but a video of the ordeal demonstrates why recycling can be a matter of life and death.




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This nifty backpack is made from a whole bunch of recycled plastic bags

Onward Bag is landfill-skirting design at its most ingenious.




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China's Singles Day shopping spree leaves a trail of waste behind

Popular online shopping holiday produces billions of dollars in sales — and billions of boxes in the trash.




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Sweden runs out of garbage, forced to import from neighbors

Sweden, a recycling-happy land where 810,000 homes are heated by the incineration of waste, is facing a unique dilemma: It needs more fuel.