WebApr 14, 2024 · Rain melting Greenland ice sheet 'even in winter' 冬日雨水融化格陵兰冰盖 ... Scientists have found evidence of what could be a massive canyon, hidden under the white continent's surface. WebAug 30, 2013 · A 750km canyon preserved under the ice for millions of years is a breathtaking find in itself, but this research is also important in furthering our …

NASA discovers ‘Land of the Lost’ canyon under Greenland ice

WebFeb 11, 2024 · Watch on. Just 114 miles from the newly-found Hiawatha impact crater under the ice of northwest Greenland, lies a possible second impact crater. The 22-mile wide feature would be the second crater found under an ice sheet, and if confirmed, would be the 22nd-largest crater on Earth. A NASA-led team discovered the feature using … WebTo simplify it, 10 years ago scientists hypothesised that a comet hit the north american ice sheet during the last ice age in order to explain a temporary dip in temperatures 12,000 years ago called the Younger Dryas. Now, a big impact crater that could conceivably be 12,000 years old has shown up under the north american ice sheet. dunkin donuts healthy menu

The Wreck of a WWII Fighter Plane Will Be Unearthed from a Greenland …

WebJan 14, 2014 · “A [460-mile] canyon preserved under the ice for millions of years is a breathtaking find in itself, but this research is also important in furthering our understanding of Greenland's past. The Greenland ice sheet hides the longest canyon in the world. Discovered in 2013, the canyon stretches 460 miles (740 kilometers) from the highest point in central Greenland to Petermann Glacier on the northwest coast. That's significantly longer than China's 308-mile-long (496 km) Yarlung Tsangpo … See more The canyon isn't the only rugged part of Greenland's under-ice landscape. Decades of mapping the island by ice-penetrating radar (which is usually mounted on … See more Hundreds of thousands or millions of years ago, before Greenland was covered with ice, it was home to a lake the size of Rhode Island and Delaware combined. Today, the lake is a depression filled with sediment. But it was … See more Not all the topography below the ice sheet is of Earthly origin. Scientists have found at least two likely meteor craters buried beneath the ice. Both are in northwest Greenland: One sits … See more Greenland's ice sheet also hides a landscape of jewel-like lakes filled with crystalline meltwater. There are at least 60 of these small lakes, mostly clustered in northern and eastern … See more WebAug 29, 2013 · Researchers have found a “mega canyon” in Greenland tucked under a mile and a half of ice that could rival the size and depth of Arizona’s Grand Canyon. … dunkin donuts heart shaped donut