In early Egyptian[3], and Mesopotamian thought the world was portrayed as a flat disk floating in the ocean

In Egypt they thought the world was a ball this can be seen on thousands Statues of Amen Ra, Ra, Horus The Elder etc. It is clearly a ball-(not a disk as they are in 3d).
Also they believe that a huge scarab beetle rolls the ball across the sky.
Never trust Wikipedia

Most interesting because there are several posters who were absolutely positive that there was no such thing as the paranormal, yet they believe in aliens

but science and aliens are much more compatible than science and ghosts

im pretty sure NASA or someone will find bacterial life or traces of bacterial life within our own solar system, europa, mars, io etc etc

these 2 on the other hand are a just clowns

I think we're not far away from proof of "life" on another earth-like planet, more and more are being discovered all the time, now that we know what to look for, so in that respect, I reckon less than 10 years away. What sort of "life" that is, whether it's a recognisable civilisation, and whether we'll ever meet are more difficult to answer.

Are "they" here now? Who can say?

Most interesting because there are several posters who were absolutely positive that there was no such thing as the paranormal, yet they believe in aliens

Because ghosts are just a silly sleight of the human imagination whereas alien lifeform (and none of us are thinking little green men from Mars BTW) is pretty much a certainty.