posted on Feb, 24 2009 @ 07:58 PM
Just have a quick look at these!
If you notice the early photos of UFOs are pretty simple looking disc shapes, then as you move on through the years you can see a difference.
Most of them I believe are our secret developements that have advanced over the years, and the rest who knows?
And as Slayer commented there would be many shapes and forms of craft that the supposed visiting Ets would be traveling in, but I think if a race many
thousands of years more advanced than us has perfected space travel with a certain craft may be they would stick with it for a very long time.
As qouted by Sgt Clifford Stone there are supposedly 57 species of visitors recorded so no doubt there are as many craft types if not more.
Star & Flagged this as I was going to start a thread very simular.