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Last week, the airplanes of the future filled the sky over Paris. Here are our favorites.

At a speech at Georgetown University, he laid out the basics for how the country will combat climate change--whether or not Congress helps.

A real-life Super Size Me, only for 16 years instead of a month. Want to take a guess what happens to your body?

IRIS is designed to unravel one of the sun's best-kept secrets.

The death toll nearly doubled over the weekend.

How can an oyster rotate pearls so perfectly when it's basically just a giant booger?

A new crowd-sourced effort found 35,000 promising molecules that could make light, flexible solar power materials.

Don't be fooled by its fluffy, clumsy amble. The red panda is a master escape artist.

London sure looks pretty--and busy

Sounds like he had a stressful weekend.

Predictions for how we will live and work—on Earth or in space—in the decades and centuries to come

Which leaves us with the important question: Could an X-ray weapon actually work?

A refutation of "chemophobia."

Clapping is just as infectious as a disease, according to a new study.

It's huge and spiky and about to bloom in Surrey.

How an unlikely company is planning to revive an unlikely tool.

Another blow to a compelling evolutionary theory.

The all-volunteer Copenhagen Suborbitals will launch their Sapphire rocket from the Baltic Sea on Sunday. They aim to eventually send a human into space.

Note to Fox News: it wasn't a cloud of toxic chlorine.