steve : Excuse me. What's going on

steve : Excuse me. What's going on
Greg : When I got to the park, a crowd had already gathered around that weird thing over there
steve : Gee! I wonder what it is.
Greg : Beats me! It must have fallen from the sky. Do you have any idea what it might be
steve : Whatever it is, it's man-made. It looks like part of a satellite to me
Greg : Or it might be the remains of a weather balloon.
steve : No,it can't be. I've seen weather balloons before,and that's not the type of eguipment they have.
Greg : You see those lights flashing? And there's a humming sound coming from it. It must be a communications satellite.
steve : Or maybe one of those UFOs. You never know.