Revealing mistake: As the Eagle lands on the new planet, the wires for flying the model can be seen.
Revealing mistake: As the "dead" companion lies in the coffin, you can see him breathing.
Revealing mistake: As the camera looks at the exhaust port of the probe's engine, there's water dripping off the bottom, showing the stream is water vapor.
Revealing mistake: As Koenig tells of the attack, his feet are passing by the "dead" Mike Baxter. As they pass, Baxter's eyes flicker for a second.
Revealing mistake: Every time "red alert" is on the screen, it's easy to see the screen is an overlay with "red alert" cut into it.
Revealing mistake: As the Voyager probe lands, the control wire lowering it is visible.
Revealing mistake: As the Eagles take off from Piri, the wires used on the models to "fly" are easily seen.
Alpha Child - S1-E7
Revealing mistake: As the alien ship approaches Alpha on screen, there is a round, blank area where the model moves, and as the vessel nears the camera, the edge of the cell used for the picture of the vessel is visible.
Alpha Child - S1-E7
Revealing mistake: As Jackie is drawing, Koenig's face comes up on the communicator. As the screen goes from the idle/test pattern screen to the identity screen, you can see the picture jump, suggesting there was a pause in filming to allow the unit with the idle screen and the picture screen to be swapped out.
Revealing mistake: Most of the time, as the Eagles are taking off, landing, or flying, the wires used to accomplish these actions are visible.
Revealing mistake: Many times throughout the series, the wires that hold up and control the models of the Eagles are easily seen.
Answer: Not necessarily - The gravitational fields of Earth and the Sun could have deflected the moon away from the solar system.
Seniram