About stabilizing a space rocket with a pendullum

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The discussion centers on the stabilization of a space rocket using pendulums, specifically referencing team ARCA's approach in the context of the Google Lunar X Prize. The method involves passive stabilization through the swinging movement of pendulums located in the lower stages of the rocket. However, the consensus is that pendulum motion is not an effective stabilization technique in a vacuum; instead, rotational gyroscopic motion is identified as the appropriate method for stabilization in such environments.

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About stabilizing a space rocket using a pendullum

There exists a competition called Google Lunar X Prize whose main objective is sending a rocket to the Moon. One of the contenders, team ARCA, is ready to launch a rocket (not a Moon rocket) about which they claim to be passively stabilized in vacuum by the swinging movement of some pendulums (the lower stages of the rocket).

A self explicative nice animation regarding the rocket of ARCA and its stabilization method can be downloaded from the following address:
VIDEO:
http://www.arcaspace.ro/

QUESTION: Do you believe that the stabilization procedure in the animation could work in vacuum, at least theoretically?
 
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One does not stabilize a craft by pendulum motion, and it should be obvious why.

Rotational gyroscopic motion is the appropriate means.
 

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