OSIRIS-REx says hello to the Allen Telescope Array

The Allen Telescope Array uses 42 radio dishes to search for radio transmissions from ET. How do we know the system is working? To answer that we point the dishes in the direction of a spacecraft we know is transmitting radio ...

New meteor shower "just a memory" of what once was there

The weak display of last month's Camelopardalids meteor shower, the result of the close passage of comet 209P/LINEAR, may have disappointed backyard observers, but this never-before-seen shower now has scientists excited. ...

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