Shuttle Discovery: Final Flight Over DC

Shuttle Discovery: Final Flight Over DC

April 17, 2012—In its final journey to its permanent museum home, NASA's space shuttle Discovery makes a flyover above the U.S. capital. NASA coordinated with the U.S. Federal Aviation Administration to navigate through the restricted air space over Washington, D.C.

Portable Scanners "Read" Brains on the Go

Portable Scanners "Read" Brains on the Go

August 1, 2013—Though EEG (Electroencephalography) has been around for decades, now, new technology allows us to detect and measure brain activity with a lightweight headset and mobile phone. National Geographic Emerging Explorer and entrepreneur Tan Le demonstrates how her company's EEG headset and software can be used for a variety of research purposes.

Mars Rover's "Seven Minutes of Terror"

Mars Rover's "Seven Minutes of Terror"

July 31, 2012—NASA has planned one of the most complicated spacecraft landings ever attempted for the Curiosity rover's touchdown on August 6 at about 1:30 am. ET.The complex procedure involves the use of the largest supersonic parachute ever built and a "sky crane" to lower the rover onto the Martian surface. "If any one thing doesn't work just right," says one engineer, "it's game over!"

See How Easily a Rat Can Wriggle Up Your Toilet

See How Easily a Rat Can Wriggle Up Your Toilet

August 14, 2015 - A rat's ribs are hinged at the spine, enabling it to easily squeeze through the tightest spaces—like the pipes draining your toilet. And rats are great swimmers too; they can hold their breath for up to three minutes. See how quickly a rat can go from the city streets to your bathroom.Read more: Yes, Rats Can Swim Up Your Toilet. And It Gets Worse Than That.

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Tiger Trade Slashes Cats' Numbers

Tiger Trade Slashes Cats' Numbers

January 25, 2010—Only 350 wild tigers remain in Asia's Mekong River region, according to a new report from the conservation nonprofit WWF, which says the loss is being driven by trade in tiger parts.

Most High-Tech Ocean Observatory Opens

Most High-Tech Ocean Observatory Opens

December 10, 2009—Nearly 500 miles of data-transmitting cable will make Neptune Canada's new Pacific Ocean observatory the largest of its kind. Underwater cameras will also capture seafloor wildlife.

Florida's Beautiful but Inhospitable Springs

Florida's Beautiful but Inhospitable Springs

March 6, 2015 - Florida has more coastline than any of the other lower 48 states in the U.S. But while salt water lines Florida's beaches, the state also has immense deposits of freshwater. Some of its freshwater springs, once teeming with eel grass and other underwater vegetation, are now overrun with algae. While the algae create a picturesque green scene, the tiny organisms are stifling diversity of life in the springs. At Manatee Springs, manatees no longer have the resources necessary to make the spring their home.This video was collected during the 2015 Florida Wildlife Corridor Expedition, a thousand-mile journey from central Florida to Alabama to help protect the corridor "for the health of people, wildlife, and watersheds."Click to read NG Travel's tips for exploring Florida by land and sea.More videos from the Florida Wildlife Corridor Expedition:Inside a Third-Generation Oysterman’s Tough TradeFrog-Licking and Other Florida Wonders