Atom & Cosmos

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RADIO REFLECTIONS  To send messages via the moon, ham radio operators send radio waves some 384,000 kilometers to the Earth’s natural satellite. The waves bounce and hopefully are received by a ham radio user somewhere else.

Kepler-62f

JUMBO-SIZE PLANET  Big rocky super-Earths such as Kepler-62f, shown in this illustration, probably don’t have active plate tectonics, new research suggests. 

baby planet torn apart by black hole

A dust cloud, navigating the orbits of dozens of stars (blue), gets torn apart by the supermassive black hole in the center of the galaxy in this artist’s illustration.

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