Sam, we must thank the 'creators' of this HABITABLEZONE, they have given us the ability to 'air' our views as well as 'learn' what others think.
In their (infinite?) wisdom they have created several discussion boards.
This SPACE board is reserved for the airing of Space and Earth related items. Conjecture will be allowed and will be considered 'interesting' if it is known that it is fiction or if the information is based on the 'understanding' of today's scientists.
In other words, 'scientists' do not understand UFO's.
But all is not lost because there is the 'Offtopic' board where UFO's can be discussed.

At least that is my understanding.

I'm sure that Robert or others will correct me if I am wrong.

Cheers
Johannes