Did the Pentagon Shoot Down a Harmless Ham Radio Balloon?

Pentagon Releases Photo Of Chinese Spy Balloon Taken From U-2 Spy Plane

In 1960 renowned Australian physicist Ronald Bracewell speculated that alien societies may have already sent robot probes to our Solar System. He inspired sci-fi authors — but not serious research. Now, with NASA and The Pentagon taking UAPs seriously, it may be time to dust off Bracewell's ideas.

Mystery object shot down over Yukon may have been harmless 'pico balloon'