Not Saying it was Aliens, but ‘Oumuamua Probably Wasn’t a Nitrogen Iceberg…

The world's largest radio telescope may be able to find self-replicating alien robots. The world's largest radio telescope, FAST may be able to find aliens. As molecules are ionized, they will radiate, and an entire swarm of probes will produce emissions in the form of radio signals and X-rays.

A Strange Radio Signal Was Just From Earth, Not Aliens

Mysterious radio signal from Proxima Centauri was definitely not aliens