Science Alert reports on the discovery, in images from NASA's Deep Space Climate Observatory spacecraft, of flashes of light from the Earth:
[...] NASA detected 866 bursts of light between June 2015 and August 2016, and they were all coming from the land.
A similar phenomenon had been seen before:
Back in 1993, astronomer Carl Sagan noticed strange flashes of light showing up in images of Earth taken by the Galileo spacecraft.
[...]
In Galileo's images, they found large glints of light, reflecting like mirrors - but he could only find them in regions of the planet covered in water.
Previously, specular reflections from water had been offered as the explanation. Now, the phenomenon is thought to be reflections from horizontal ice crystals.
Further information:
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(Score: 2) by DeathMonkey on Wednesday May 17 2017, @06:04PM (1 child)
Don't worry, Trump will put an end to this dangerous alien beacon.
(Score: 2) by bob_super on Wednesday May 17 2017, @07:34PM
Melt all the ice, darken the skies with soot, and shove into a closet anything over 10 years old and still using glitter.