Their research reveals which Earthly 'technosignatures' would be easiest to detect from a planet across the galaxy.

"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the ...

So, could PT5 have come from the moon? There's a good chance that it did but how do we know this? Planetary scientists have long studied near-Earth objects (NEOs) and NEAs to understand their origins.