News tagged with satellite

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Image: A mysterious ring of celestial microwaves

Fifty years ago, astronomers discovered a mystery. They called it Loop I. Today, we still have not fully resolved the mystery of how this giant celestial structure formed but we do now have the best image of it, thanks to ...

dateJun 07, 2016 in Astronomy
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Landsat—The watchman that never sleeps

In western North America, mountain pine beetles infest and ravage thousands of acres of forest lands. Landsat satellites bear witness to the onslaught in a way that neither humans nor most other satellites can.

dateJul 19, 2016 in Environment
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