Hiya 3i/ATLAS

It's the closest approach of what we have come to call 3i/ATLAS which is an interstellar comet...or is it?
Speculation has been growing that rather than a massive ball of ice careening around the Milky Way for the last few billion of years, the thing 168 million miles away is actually 'a hostile alien threat' according to Harvard Scientist, Professor Avi Loeb.
He has pointed out the changing colour and acceleration as well as the parallel jets which indicate technological propulsion which when taken all together, points to an alien spacecraft which is on a trajectory to study the Planets of the Solar System while staying far enough away to avoid close detection by Earthlings armed with powerful telescopes.
So are we going to wake up today and discover lots of little green men with red glowing fingers asking us to 'phone home' or not I asked Open University's Physics and Astronomy Department and apparently it's a firm not.
'This object is a comet. It looks and behaves like a comet. All evidence points to it being a comet' explained the spoilsports so how do they explain the changing colour?
'Oddities in nucleus properties like composition, shape, or structure which would have been acquired from its host system or over its long interstellar journey' which makes sense i guess so maybe we don't have to worry about that question I have often pondered on if they ask to be taken to our leader.
Then again, if i was an alien coming to Earth to have a nose around and see if we need to be vapourised out of existence then i would make my Spaceship Comet shaped and behave like a Comet until the moment i landed and began herding humans into cages so who knows.
I would avoid the UK though because it seems like everyone here is going down with colds and Flu and we know what happened in War of the Worlds when the advanced Alien invaders were defeated by people sneezing at them so maybe we should keep some snotty nosed kids on standby, just in case.