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Ancient Greek algorithm could be used to find inconceivably large prime numbers

The sieve of Eratosthenes is an ancient tool for finding primes, but it might get a boost by modern computing.




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Scientists measure the smallest increment of time ever recorded

The breakthrough will allow for stunning time lapses that reveal the behavior of electrons.



  • Research & Innovations

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How algorithms influence us every day

The omnipresence of algorithms raises interesting questions about day-to-day human experience.




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Video game 'Easter eggs' are reaching Da Vinci Code-like levels

Solving secret codes hidden within video games could soon spill over into real life mysteries.



  • Arts & Culture

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6 green ways to invest your income tax refund

Whether you filed your taxes early or are scrambling at the last minute, it's not a bad idea to start planning what to do with your tax refund.




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How your 'slow money' can make a difference

How the Slow Money Alliance uses green investing to turn a profit and grow a community.




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How birth order may determine your financial personality

Conservative saver? Risky investor? Results of a new study suggest that your position in the family line-up may drive your financial decisions.




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​Baugruppen: It's a cooperative living concept, and it's perfect for boomers

This German concept of cooperative living could be a great alternative to the retirement community.



  • Remodeling & Design

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Ben & Jerry announces big move into fair trade

The Vermont-based premium ice cream company is making the commitment to get 100% of all possible ingredients from Fair Trade sources by the end of 2013.



  • Wilderness & Resources

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Free Food (Inc.)

A fast-food restaurant that wants you to see <i>Food, Inc.</i>? Can it be true? Yep -- and they'll even pay for your ticket.




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Filament bulbs: Is ambiance worth the cost to the planet?

Antique bulbs create retro vibe but also are the most-energy guzzling option for restaurants.



  • Gadgets & Electronics

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2011 James Beard Award nominees announced

You're bound to find something that piques your interest in this list of distinguished nominees for the top food awards.




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Tips for video conferencing job interviews

As testaments to the advantages of virtual interviews continue to grow at the same time as concerns about the economy and the environment increase, what was onc



  • Research & Innovations

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Bubbles could boost cargo ship efficiency

Could the power of tiny bubbles be used to boost the fuel-efficiency of cargo ships?




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James Cameron created new camera system for trench dive

Director/explorer utilized new thumb-sized 1080p cameras to capture 3-D video from the deepest point on earth.



  • Gadgets & Electronics

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How to incorporate video conferencing into your law practice

Video conferencing for lawyers: How to get started. Lawyers need to consult face-to-face — deposing witnesses and finalizing deals — but there's no reason



  • Research & Innovations

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AT&amp;T launches eco-rating system

Products featuring an eco-rating are now available in AT&T stores.



  • Sustainable Business Practices

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Ancient knots bind Mars rover&#39;s equipment together

While the Mars Curiosity rover sports state-of-the-art equipment, much of that machinery is bound to its body by a simple network of knots.




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Solar Impulse to make stop in Cincinnati

The innovative plane continues its journey across the United States using only the sun for fuel.




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Honeywell launches Lyric, a thermostat that keeps tabs on your comings and goings

HVAC heavyweight Honeywell unveils Lyric, an attractive and eager-to-adapt household thermostat with GPS-based functionality.




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Al Gore launches &#39;Reality Drop&#39; to counter climate change denial

New tool rewards users for 'dropping' climate change facts into different online forums or comments on trending articles.



  • Arts & Culture

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Has Nigeria&#39;s first astronaut been stranded in orbit on a secret space station since 1989?

This fraudster has an overactive imagination.




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Americans push back on proposed fee increases at national parks

The U.S. Interior Department is reportedly backing away from the plan after receiving a flood of disapproving public comments.



  • Wilderness & Resources

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Instead of a message in a bottle, these Scottish boys launched a tiny pirate ship

Young Scottish brothers are watching to see where their little ship 'Adventure' will end up.




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This shelter is making things right for survivors of violence — including their pets

Ahimsa House brings healing to survivors of domestic violence, by giving both humans and animals a safe place to start over.



  • Protection & Safety

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9-year-old boy convinces Colorado town to make snowballs legal again

After nearly 100 years, snowballs are legal in this town again thanks to one brave kid.




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Microsoft&#39;s big tablet announcement

The software giant is expected to unveil its first tablet computer.




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Talc powder has no significant link to ovarian cancer, study finds

The latest, largest study finds talcum powder likely causes little risk for ovarian cancer.



  • Fitness & Well-Being

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Financial woes linked to uptick in vasectomies

New survey finds that as the U.S. economy worsened, vasectomy rates increased.



  • Babies & Pregnancy

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Can venture capitalists fill the science gap?

With little public funding for science, Silicon Valley investors are coming to the rescue.



  • Research & Innovations

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You can learn more about innovation from Renaissance Florence than from Silicon Valley

Lessons in business and management from the Medicis.



  • Sustainable Business Practices

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Uncle Sam says use sunscreen

If a bad burn isn't motivation enough to use care when you're out in the sun, perhaps some government intervention will help.



  • Fitness & Well-Being

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EPA announces Apps for the Environment challenge

If you're an app developer, check out the Environmental Protection Agency's new Apps for the Environment challenge.



  • Sustainable Business Practices

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4 ways the sequester could affect science, the environment and public health

The slate of spending cuts could wreak havoc on everything from USDA meat inspections and FDA drug reviews to EPA research and national park staffing.




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Cindy Crawford pulls kids out of Malibu school over toxin concerns

Elevated levels of polychlorinated biphenyls (PCBs) in several classrooms have parents worried their children are at risk.



  • Arts & Culture

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The Lily Impeller: Nature-based design inspires game-changing efficiencies

Jay Harman developed technologies from the Lily Impeller that he says may fundamentally change how humans do almost everything.




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Repair of the world: How Tikkun Olam Award winners are making a difference

Each socially-conscious Jewish teenager receives $36,000 for further public service work or education.




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A new weapon against vitamin A deficiency: Yogurt

Grad student Christopher Johnson hopes to save lives with a little help from some microscopic partners.




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Bat-killing fungus all but invincible, study finds

The fungus behind white-nose syndrome has few weaknesses to exploit, a new study suggests.




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You can put this lizard on the lunch menu

The brown anole is an invasive species, and if you can't beat 'em, eat 'em.




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In San Francisco, giant inflatable rabbits are assigned 24/7 security detail

Following a 3-week stint, the very big bunnies will hop to other cities.



  • Arts & Culture

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Predator-proof fence saves seabirds in Hawaii

By keeping out invasive cats, rats and other predators, a new fence on Kauai is helping a rare bird bounce back.




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Giant predatory worms have invaded France

People in France have been reporting sightings of bright, hungry predatory worms since 1999.




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Australia creates world&#39;s largest cat-proof fence

The 27-mile long electrified fence in Australia creates a predator-free area of almost 23,200 acres.




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In the Green Room: Ray Anderson of Interface Inc., part 2

Chuck Leavell, keyboardist for The Rolling Stones and the cofounder of MNN, sits down with noted environmentalist Ray Anderson of Interface Inc. Anderson, a not



  • Remodeling & Design

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Close encounters of the presidential kind

Chuck Leavell recounts his most recent presidential run-in at the UN Climate Summit.




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Crater on Mars was once a lake, Curiosity rover shows

A giant crater on Mars may have been able to support microbial life for millions of years in the ancient past.




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Ancient life on Mars would&#39;ve needed more than just water to survive

Ancient Mars featured flowing rivers and sizable lakes — but that doesn't mean the Red Planet definitely could have supported life.




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Huge 400-foot tsunamis once washed over Mars

Several billion years ago, Mars had a vast ocean that may have harbored some giant waves.




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A former NASA scientist is convinced we already found life on Mars

Life-affirming data from 1976 was dismissed as a 'false positive,' but former NASA scientist Gilbert V. Levin is speaking up.