You can see a lot from 1 million miles away. The blues, greens and browns of Earth's oceans and land masses stand out against the blackness of space as clouds move above the planet's surface.
And sometimes you see something you may not expect.
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Scientists working with NASA's EPIC camera on the Deep Space Climate Observatory spacecraft (DSCOVR), located about 1 million miles from Earth, have caught sight of hundreds of mysterious flashes of light reflecting off our planet over the course of a year.
What could they be? Reflections of sunlight glinting off oceans? A really, really annoying guy with a flashlight? Aliens? Read more...More about Space, Nasa, Science, Space Photos, and Earth