Yeti Robot Detects Polar Dangers

Meet Yeti—the robot that’s making life easier for polar scientists.

No, it doesn’t look like a giant white ape. But the battery-powered rover has all the toughness of an abominable snowman, surveying undetected hazards at research sites in Greenland and Antarctica. (See pictures of polar landscapes.)

Watch a video of Yeti at work.

Now, after six years of operation, a new study shows that Yeti and other polar robots have “great potential” to improve the safety and efficiency of scientific work at the Poles. (Also see “Sharp-eared Robots Find Whales—And Help Them Escape Danger.”)

“It’s simple and inexpensive, yet effective,” said Laura Ray, an engineer at Dartmouth College and Yeti project leader.

“On a $20,000 budget, designing from the ground up, undergraduates designed [and] fabricated a very reliable robot.”

The robot was designed and built to roam the Poles by a team of Dartmouth engineering students with a grant from the U.S. National Science Foundation. It’s a “testimony to their capabilities that Yeti has been so successful,” she said.

Yeti Power

As more scientists work at the Poles—studying subjects from climate change to the cosmos—it’s important that the areas they work in are safe, since polar regions are scarred with crevasses, or deep voids. (Test your knowledge about working in Antarctica.)

Yet many people still search for crevasses by using manual ground-penetrating radar surveys—exposing crews to possible risks.

Yeti robot in front of Mount Erebus, Antarctica. Photograph courtesy Kirsten L. Mabry

But the four-wheel drive Yeti removes this danger by accurately detecting treacherous terrain via ground-penetrating radar and global positioning systems (GPS).

A new study, published in the March/April issue of the Journal of Field Robotics, found that Yeti operated reliably at temperatures of -22 degrees Fahrenheit (-30 degrees Celsius), moved well over uneven snow, and acquired data on hundreds of crevasse encounters—which will help scientists identify where crevasses are, according to the authors.

The 160-pound (73-kilogram) robot is also lightweight enough that it can travel across crevasse bridges without falling in, said Ray.

So far Yeti’s been deployed on 12 projects, including one at the South Pole, where the robot discovered three buried buildings that could have been hazardous for people working in the area. (Read a first-person account of visiting the South Pole).

Ray hopes that Yeti can help scientists beyond finding dangers—for example, the rover’s data on crevasses can be used by scientists studying how ice sheets are changing as the world heats up.

So what would Yeti say if she could talk? “This is fun,” Ray suggested. “Yeti gets to … see the world.”

Christine Dell'Amore, environment writer/editor for National Geographic News, has reported from six continents, including Antarctica. She has also written for Smithsonian magazine and the Washington Post. Christine holds a masters degree in journalism with a specialty in environmental reporting from the University of Colorado at Boulder. Her book, South Pole, was published in 2012.
  • Vishal Bhardwaj & Nihal Bhardwaj

    I think thereWhen subjected to an electrical current, the rare material dubbed element zero, or “eezo”, emits a dark energy field that raises or lowers the mass of all objects within it. This “mass effect” is used in countless ways, from generating artificial gravity to manufacturing high-strength construction materials. It is most prominently used to enable faster-than-light space travel.
    Eezo is generated when solid matter, such as a planet, is affected by the energy of a star going supernova. The material is common in the asteroid debris that orbit neutron stars and pulsars. These are dangerous places to mine, requiring extensive use of robotics, telepresence, and shielding to survive the incredible radiation from the dead star. Only a few major corporations can afford the set-up costs required to work these primary sources. is one extra-ordinary element in this universe.

  • Thomas N. Bradshaw Ph. D.

    Element zero has been confirmed in labratory tests to enable faster-than-light space travel. Element zero was given its name due to the fact it has no electrons as normal elements do. Because of this abnormality, the positively charged nuclei of “eezo” does not change state until combining with electrons that were stripped during the initial tests of the large hard-on collider.

  • Jaiden Wigger

    Couldn’t these robots be used for war if they were properly equipped for combat?

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