The spaceship was shaped like two spheres attached by a cylinder curiously resembling dumbbells.

I have had a close encounter with an alien spaceship.  This occurred on a partially sunny afternoon in Ponce, Puerto Rico, at approximately 3:00 or 4:00 in the afternoon in what could have been January or February 1974.  The spaceship was shaped like two spheres attached by a cylinder curiously resembling dumbbells. The spaceship was not shinny nor did it have any blinking lights or humming noises, it was opaque white in a color resembling the color of white clouds.  The spaceship moved silently, and very slow, almost hovering in what appeared to be almost a reconnaissance flight. It moved from a southerly position to the north.  I observed the spaceship until it camouflaged itself behind some clouds and I never saw it or have seen it again.