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Ashok Kumar
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NASA Small Satellites Set to Take a Fresh Look at Earth
Beginning this month, NASA is launching a suite of six next-generation, Earth-observing small satellite missions to demonstrate innovative new approaches for studying our changing planet. These small satellites range in size from a loaf of bread to a small ...
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A Box of ‘Black Magic’ to Study Earth from Space
That’s what radiofrequency engineers call the mysterious forces guiding communications over the air. These forces involve complex physics and are difficult enough to master on Earth. They only get more baffling when you’re beaming signals into space. Until ...
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Taking Measure of a Remote Slice of Alaskan Forest
Kate Legner points out the next tree in the survey site as other crew members measure key information about the vegetation in a 53-foot diamter plot. In a birch forest in interior Alaska’s Tanana Valley, there’s a stake with pink plastic tape attached. More...
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Burrowing into the Arctic’s Carbon Past and Future
The Permafrost Tunnel provides a look back in time, allowing for research into the frozen ground of interior Alaska. “What we’re going to do is walk back in time,” said Matthew Sturm, standing in front of a doorway that led into a hillside north of Fairbank...
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Home is Where the Astronaut Is
The Expedition 43 crew gathers aboard the International Space Station to affix their mission patch to the vehicle. Commander Terry Virts (center left), Scott Kelly (top left), Gennady Padalka (top center), Anton Shkaplerov (top right), Mikhail Kornienko (bo...
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