Night-shining clouds started glowing high above Antarctica earlier than usual this year, observations from a NASA satellite show.
These rare types of…Read More »
wispy blue-white clouds are called noctilucent clouds, or NLCs. They form when water molecules freeze around "meteor smoke" close to the edge of space, typically about 50 to 53 miles (80 and 85 kilometers) above Earth's surface — so high that they can reflect light after the sun sets.
Credit: D. Lombard/ U.S. Department of the Interior
Last week the temperature in Grand Teton National Park dropped to minus 20 degrees Fahrenheit (minus 28.8 degrees Celsius). The frozen park was captured…Read More »
in the stunning photo above.
Located in northwestern Wyoming, Grand Teton National Park protects stunning mountain scenery and a diverse array of wildlife. Rising more than 7,000 feet (2,134 meters) above the valley of Jackson Hole, the Teton Range dominates the park's skyline. Protecting these breathtaking mountains was the impetus for the creation of Grand Teton National Park, where visitors can explore over 200 miles (300 kilometers) of trails, float the Snake River or enjoy the serenity of this remarkable place. The granite and gneiss composing the core of the Teton Range are some of the oldest rocks in North America, but the mountains are among the youngest in the world.
Long, snowy and bitterly cold winters make the climate of Jackson Hole unforgiving. Snow often blankets the landscape from early November to May. Last week’s minus 20 F temperature is not even close to the coldest temperature ever recorded in Grand Teton National Park, which was minus 63 F (minus 53 C).
A Japanese robotics team dominated the field after an ambitious two-day competition that saw robots driving cars, climbing ladders and wielding power tools.
…Read More »
A two-legged robot built by engineers at SCHAFT Inc., a Japanese robotics firm, won the DARPA Robotics Challenge Trials today (Dec. 21), scoring the most points across tasks that tested the robots' mobility, dexterity, perception and autonomous operations. Florida-based IHMC Robotics' humanoid robot claimed second place in the competition, with Carnegie Mellon University's Team Tartan Rescue rounding out the top three.
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