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Continental drift is common knowledge now, but when the idea was first proposed it was revolutionary. Helen Czerski tells the story of how the maps of one of history's finest cartographers shifted our view of the planet (4:32 video).
There are more trees on Earth than there are stars in the Milky Way—about 422 trees per person!. The post includes a narrated video clip of a year's distribution of CO2 an CO over the planet by NASA's GSFC.
Brian Switek (@Laelaps) describes the tsunamis, a deadly heat pulse, and massive cooling following the Chicxulub impact. "By sifting through the rock record, experts are putting together a nightmarish vision of one of the worst days in the history of our planet." #geology #paleontology #Mesozoic #KPg #chicxulubimpact
Our planet has existed for 4.5 billion years, and it has been a busy few eons. Here are the 25 biggest milestones in Earth's history. From leaps forward in evolution to devastating asteroid impacts, these were the turning points that shaped our world. #deeptime #paleo
Monitor our planet's vital signs, such as sea level height, atmospheric carbon dioxide concentration and Antarctic ozone. Trace the movement of water around the globe using the gravity map from NASA's GRACE satellites. Spot volcanic eruptions and forest fires using the carbon monoxide vital sign. Check out the hottest and coldest locations on Earth with the global surface temperature map. Observe Earth from a global perspective in an immersive, 3-D environment.
Eyes on the Solar System lets you explore the planets, their moons, asteroids, comets and the spacecraft exploring them from 1950 to 2050. Eyes on Exoplanets will fly you to any planet you wish—as long as it’s far beyond our solar system. Look at more than 1,000 exotic planets known to orbit distant stars.
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