I just registered and am not sure if this is the correct place to post something.
My name is Gregory Wiseman and I was one of the crew on the 2014 NASA expedition to the ISS.  My daughter told me about this society earlier today and I am honeslty intrigued.   I am not sure if the members here are truly in the pursuit of knowledge or just having fun but if it is the former then I am happy to share my personal experiences. 
Having spent a little over three months in earths orbit I can tell you all that we live on a stunningly beautiful planet and the earth I can assure you is perfectly round.  So perfectly round that if you shrunk it to the size of a billiard ball, it would be infinitely smoother in your hand than an actual cue ball.  I've been fortunate to view the earth with my own eyes from the heavens of the ISS and our planet is no different than any other, it is round just like a globe.
I'd be happy to answer an questions if they are sincere and hope you all will continue a lifetime of learning.