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Tiny planet is a bit bigger than Earth’s moon

Kepler-37b planet

A planet discovered outside our solar system is smaller than Mercury, the smallest planet orbiting our sun. The planet, about the size of the Earth’s moon, is one of three orbiting a star designated Kepler-37 in the Cygnus-Lyra region of the Milky Way.

“The detection of such a small planet shows for the first time that stellar systems host planets much smaller as well as much larger than anything we see in our own solar system,” the astronomers write in a summary of their findings.

planet comparison

Full story at Futurity.

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Photo credit: NASA

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