Stephen Hawking’s Breakthrough Listen project picks up radio pulses that could be from black holes, neutron stars or, some speculate – UFO beacons 

Searching the deep space: The Robert C Byrd Green Bank telescope at the National Radio Astronomy Observatory, part of the Listening Project, in Green Bank, West Virginia, US.
Searching the deep space: The Robert C Byrd Green Bank telescope at the National Radio Astronomy Observatory, part of the Listening Project, in Green Bank, West Virginia, US. Photograph: Jim West/REX/Shutterstock