If the concentration of PFTBA is the same everywhere as it is in Toronto, which the researchers think it is, then that would be a bad thing.

There’s a New Greenhouse Gas to Worry About, And It’s 7,100 Times Stronger Than Carbon Dioxide

PFTBA is the most efficient greenhouse gas found, on a molecule-by-molecule basis

NASA's Juno spacecraft captures first images of our moon orbiting Earth.

Watch From Space As the Moon Orbits Around Earth

The Earth and the Moon, as seen from 600,000 miles away

Can you find Beijing in this photo? Or anything, really?

China Is So Smoggy You Can’t Even See Beijing From Space

Can you find Beijing in this smog-filled satellite photo?

The Antarctic plateau. Very, very, very cold. Now, imagine it in winter.

You Think It’s Cold Out? NASA Just Found the New Coldest Place on Earth

At -135.8 Fahrenheit, you definitely don't want to go here

If People Flirted Like Animals

Just be glad people don't flirt like some of these other animals

By Painting Their Markings, This Scientist Disrupted Birds' Social Structure

A few lines of black paint was all it took to destroy these Pūkekos' social standing

Two BlizzCon attendees dress up as Blood Elves, a race from the World of Warcraft.

The NSA Was Spying in World of Warcraft

And in Second Life

You Can Be Really Good at Certain Skills Without Having Any Idea How They Work

How well do you know the tools you use every day?

A more Earthly Mordor.

Which U.S. City Most Resembles Mordor? A British Climate Scientist Found Out

Mordor is basically Los Angeles

This is the First Selfie. Ever.

Not new at all, the world's first selfie was snapped in 1839

Without Nutrients From Conventional Farms, Yields of Organic Crops Could Go Down

Many of the nutrients flowing through organic farms still ultimately derive from conventional farms

This part of the planet would have looked a whole lot different.

America Was Almost Two Separate Continents

The east and the west were nearly different continents

All turnips, all the time.

The Moon: The Only Place in the Universe Anyone's Excited About Turnips

Someone at NASA has a real thing for turnips

What's the Air Force's Secretive Space Drone Been Doing in Orbit for the Past Year?

The Air Force's experimental space drone has been in orbit for a year, and no one really knows why

Freezing fog is reflected in great patterns on this Kaibab Limestone at the Grand Canyon.

This Awesome Atmospheric Anomaly Filled the Grand Canyon With Fog

Visitors to Grand Canyon National Park in recent days were treated to a special sight as a rare atmospheric behavior filled the canyon

No no no, Guurr, put the mammoth tusk over there, it helps balance the energy.

Neanderthals May Have Practiced the Ancient Art of Interior Design

Excavations showed that Neanderthals may have designed their homes with purpose

Which Is the Most Lucrative "12 Days of Christmas" Career?

Of the iconic Christmas gifts, which would give you the best career prospects?

Pregnant Silhouette

Can Babies Be Born Addicted to Junk Food?

The tastes you grew up with, tend to stick with you

Every Time You Curse, You're Participating in a Weirdly Complex Cultural History

The words we consider naughty are a reflection of how we see ourselves as a culture

Nope nope nope

If Cockroaches Are Conscious, Would That Stop You From Smushing Them?

Research has shown cockroaches are adept communicators, and can even show individual personality

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