Conventional Alien Craft

I just figured out something. (Yes, whilst shitting.) All of the traditional "UFOS" have typically been a flying saucer with a dome window on the top, but why not a shapeless vehicle because in space there is no top or bottom. It's because the craft is modified (either by a hoaxer's mind or the aliens themselves) to the Earth's gravity! (Which could debunk any "gravity-law-breakeing" theories because any conventional alien craft would have to have a propulsion system.)
We also modify OUR aero-vehicles as such, note the rocket and the airplane. But even something that goes into space has been modified to fit gravity because it started out in gravity. Problem: once it reaches space, it's still modified. The only example that I can think of that doesn't fit this model is the satellite.
Hypothesis: A vehicle that is travelling through space that does not conform to gravity by shape or propulsion was either A)Built in space. B)Modified in space C)Built on planet and sent to space, then released, or D)Teleported into space.
Thought: But what of the alien craft that is not conventional such as the "cigar-UFO" or the Triangle of lights UFO...?

>>4
These sighting corresponded to Jerry Lee Lewis's release of the song "Great Balls of Fire" and his subsequent marrying of his cousin who in the movie version of those times in his life was played by Winona Rider whose family friend Timothy Leary the guru of LSD would call her Nonny.  Now, the then-secret CIA LSD testing program whose unwilling subjects had their minds blown in Montreal in proximity to the future site of Expo 67 where the Soviet Union proudly displayed their space technologies and the geometrical geodesic dome of the US pavillion designed by renowned architect Buckminster Fuller whose name would be given to the future discovery of carbon molecules called buckminsterfullerene led to the developed of carbon nanotubes speculated to be the material best suited for a tether for space elevators to bring materials to and from orbit could shed some light on these fireball phenomena.