A radio tower.
(Image credit: snvv/iStock)

This week's question: Astrophysicists are trying to identify the source of mysterious radio signals that are being emitted at regular intervals from a galaxy 500 million light-years away. In seven words or fewer, please come up with the important message that an alien civilization far, far away might be trying to send us.

Click here to see the results of last week's contest: Olm life

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