SETI's 'unusual signal' most likely came from Earth
 

With apologies to the would-be Dr. Ellie Arroways out there: the "unusual signal" picked up by SETI using Russia's RATAN–600 radio telescope and thought to be originating from a star in the Hercules constellation is almost certainly coming from...

https://www.engadget.com/2016/08/31/...me-from-earth/