As world leaders fly into Rio de Janeiro for Rio+20, thousands of people from indigenous tribes, environmental groups, unions and religious organizations gather

Quinoa is one of the most nutritious foods on the planet, cooked like rice, gluten-free, and loaded with vitamins and minerals.

Discussions about the Russian meteor explosion and Earth's encounter with asteroid 2012 DA14 were high on the Feb. 15 agenda of a UN meeting.

A new international effort will monitor potential asteroid threats and examine how to deflect them before they hit Earth.

An early alert system and rapid space launches are two ways that the UN is coordinating with other agencies to deter asteroids.

UNESCO protects more than landmarks and culturally-significant sites. There are intangible parts of culture that are important, too.

A consumer advocacy group wants to make nutrition labels less confusing.

Consumers who need guidance about all the seals and certifications on food packaging can find some answers in this food label guide.

Part II: Consumers who need guidance deciphering all the seals, certifications and claims on food packaging can find answers in MNN's Food Label Guide.

One of the latest crowned superfoods is quinoa. What makes ‘keen-wah’ so nutritious? We’ve got the scoop on quinoa nutrition facts.

The banana is perhaps the oldest recorded fruit in the world as well as the most consumed. But some dieters avoid bananas like a slippery peel. Are bananas unhe

Is drinking milk good for you, or not? Is organic milk healthier than conventional? Is raw milk safe? Here are just the milk nutrition facts.

Is sugar itself really evil? Or are we just eating way too much of it? MNN's health writer walks you through sugar's nutrition facts and offer...

There's more to carrots than vitamin A. These carrot nutrition facts that make it a welcome addition to most anyone’s diet.

If you're wondering if you should be eating more plant-based sources of protein such as tofu, here's the good and the bad about the nutrition.

Is oatmeal truly beneficial for reducing cholesterol and keeping our hearts healthy? Let's review some oatmeal nutrition facts to get the real scoop.

Strawberry nutrition facts. You probably know these berries pack a vitamin C wallop, but there's a wealth of other good stuff inside including fiber, manganese,

Understanding what you are eating is a crucial step to healthier living. But what do all those food labels really mean?

The National Potato Council lobbied Congress to include potatoes in the WIC nutritional program, claiming its exclusion sent the wrong message to consumers.

Once feared because of cholesterol, eggs are now prized for their nutritional value. And there's more to eggs than protein. Here's why eggs are so nutritious.

If we could see a photo of the amount of sugar that's in a soft drink right on the label, would it make us think twice?

You can get all the brain-boosting benefits from these nootropic foods instead of taking supplements, which aren't regulated.

This year's open category winners of the Sony World Photography competition range from a Chinese shadow puppet show to a mesmerizing underwater dance.

Annual Koch Institute exhibition explores the thought-provoking and stunning visuals behind life sciences and biomedical research at MIT.

The U.S.-backed proposal was opposed by Canada, which is home to two-thirds of the world's polar bears.

The insect's DNA helps piece together our evolutionary history.

Columbia researcher examines how ultrasound could become part of a comprehensive treatment for various degenerative brain diseases.

Video: Dennis Hong is living his dreams — literally — in a lab filled with wacky robots.

Find out what wood ducks are revealing about threats to our fine feathered friends.

Video: Getting enough shut-eye really matters for children, and those who are poor need it the most.

Video: Observing a split in the butterfly family tree.

Find out when it's best to shell out your cash in exchange for tickets.

Astrophysicist is using 3-D images generated by a supercomputer to understand what happens with a supernova explodes.

Video: Music can spark creativity in math and science.

Video: The best animators know that physics will make their animation more lifelike.

Video: Maps can provide real-time traffic information and 'fastest route' suggestions using geo-immersion — new technology that blends the real and the virtua

Video: Aerial surveillance cameras in some stores track our shopping behavior and help retailers determine what to sell and how to position it.

Video: Digitized images of very thin slices of the human brain are used to determine whether behavior patterns are reflected in the structure of the brain.

An entire ecosystem living without light or oxygen flourishes beneath the ocean floor.

Will Obama’s green cabinet give birth to the next spotted owl?

Mother Nature Network's 'Ask Vanessa' offers unsolicited advice on the environment for the president.

Obama steals a play from the Reagan/Bush playbook, and hopes for the opposite result.

We're looking at 2 to 6 months before the oil will stop gushing into the Gulf of Mexico. There are still a lot of questions that need answers.

An ancient, two-sided amulet uncovered in Cyprus contains a 59-letter inscription that reads the same backward as it does forward.

These well-educated believers have positive views of science but selectively reject certain theories that conflict with their religious beliefs.

How have Easter's ancient paganist roots manifested in this modern Christian celebration?

To broaden support for space exploration, advocates should consider approaching religious groups.

Experts are divided on the power of spirituality and an upbeat mindset.

The effect was greatest as kids got older, with tweens increasingly less likely to share.

2,500-year-old stone slab could offer clues to deciphering the lost language and religion of the Etruscans.