The U.N. ambassador is considered a top candidate for secretary of State, but her stock in the firm behind the Keystone XL oil pipeline has raised eyebrows.

From Michigan to Arkansas, a series of recent oil spills have raised doubts about the proposed Keystone XL oil pipeline.

Washington Post energy correspondent Steven Mufson traveled the 1,700-mile path of the controversial tar sands pipeline.

Ads supporting the pipeline are the work of 2 political offshoots of Zuckerberg's social welfare organization.

Amy Smart, Justin Chatwin, Wendie Malick and Ed Begley Jr. for the Environmental Media Association.

Researchers funded by NOAA record footage of a giant squid in U.S. waters, and the discovery is magnificent.

NOAA scientists capture video of a wreckfish swallowing a shark whole.

Divers enjoy a swim alongside a human-sized jellyfish near Cornwall, England.

Deep in the ocean is a 'twilight zone' teeming with 1 million undiscovered species, yet fishing there isn't regulated.

New research from a team of U.K. scientists reveals that humpback whales share songs during their migratory travels in the South Pacific.

The Malawian inventor who built a windmill at the age of 14 stopped in last night for a visit with the Daily Show's Jon Stewart.

Select Ace Hardware stores will begin selling the new Honeywell WT6500 home wind turbine next month.

12 shiny new off-shore turbines in Germany are a reminder of just how far behind the U.S. lags in race for clean offshore energy.

Cape Wind won decisive approval triggering a potential green energy gold rush. But the opposition -- which mainly just doesn't want to look at wind turbines --

Augsburg College is now the largest purchaser of wind energy from Xcel's Wind Source, the biggest provider in the U.S.

I knew wind turbine blades were long, but who knew they could be THIS long!?

Outdated technologies blamed for wind power's interference with radar systems.

About wind turbines. Efficiency, safety and neighbors are key issues for wind power siting.

Jonathan Globerson's Greenerator concept allows apartment dwellers to harvest their own wind and solar energy from the comfort of their own balconies. But would

Poll numbers show that if wind would run for office in Wisconsin, it would beat almost all major candidates already elected to office.

Germany has spent the last 5 years making solar power a mainstream business. It is poised to spend the next 10 years doing the same for offshore wind — and sh

Two proposed energy projects (each with a $7 billion price tag) present two very different directions for America's future. Which would you choose?

From 'My Sharona' to 'Tubthumping,' here's how to celebrate National One-Hit Wonder Day.

The various feathered gifts from the popular Christmas song deserve a closer look (and listen).

The record-breaking synchronized dance of 100 drones is unlike anything you've ever seen.

Insect song, when slowed down dramatically, sounds otherworldly, but also human.

Newly unclassified recordings reveal eerie radio sounds heard during an Apollo mission that weren't coming from Earth.

From the Haka in New Zealand to the Klapa in Croatia, the earliest music traditions relied on the human voice alone.

Break out the turntable and your old vinyl, and you may be surprised at how your digital loving kids connect with them — and you.

Will Minnesota's most mystique-filled home go the way of Graceland?

Smithsonian Channel special celebrates the surprising history behind the flag that inspired our national anthem more than 200 years ago.

We dare you to keep a dry eye as you watch these amazing and emotional performances of our national anthem.

From the ornate opera houses in Paris and Milan to modern ones in Sydney and China, here are 19 examples of wondrous opera houses around the world.

Can something as subjective as happiness be measured by a formula?

New research finds that people who don't like music might have lower blood flow in certain parts of their brains.

The Elbphilharmonie features over 1 million computer-generated divots to shape sound within its main auditorium.

Nocturnal opera isn't just for owls, as these audio clips make clear.

Chicks dig drummers, apparently.

Faced with restaurant-clearing brawls, McDonalds is testing classical music on late-night patrons.

Left all alone, this dog 'plays' the piano and 'sings' the blues.

'Love's Not Just For Christmas' has all the elements of a great holiday tune — except for Michael Bublé.

A new study has shown a difference in the brain structures of musicians who specialize in different genres of music.

Weary animals at elephant sanctuary in Thailand relax as volunteer plays classical piano music in the forest.

You're not officially supposed to listen to Christmas music until after Thanksgiving, but Pentatonix's a cappella cover is worth breaking the rules for.

A stray cat helped Sarper Duman recover from depression, and now he helps other strays and plays piano for them.

You haven't heard 'Bohemian Rhapsody' until you've heard it performed by beautiful trombones.

A young boy said 'Wow!' after hearing Mozart at Boston Symphony Hall, and it sparked a viral push to find out who had produced this adorable reaction.

New problem in the Middle East is likely to raise old political arguments in Washington.

He may not have won an Oscar, but the director of "Gasland" isn’t backing off the natural gas industry.

Wastewater storage from fracking may be causing earthquakes. For now, Arkansas is stopping operations.