Videographic locating a huge meteorite crater discovered in Greenland. The crater is the first of its kind ever found there — or under any of the Earth’s ice sheets — and is among the 25 largest known on Earth.
NASA images
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Freestyle skiing is a spectacular and relatively new discipline. Skiers perform aerial acrobatics while freely gliding down a slope.
Videographic explaining how different tennis court surfaces can affect game play.
The Ebola outbreak in the Democratic Republic of Congo in a videographic.
The United States deployed its Terminal High Altitude Area Defense system – known as THAAD – in South Korea in 2017. The […]