Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>It seems like all the planets are gradually moving closer to the Sun, the Earth's rotation (day length) is slowing down, and as a consequence, our Moon is moving away from us. There will come a critical point where the rotation of our Earth is insufficient to maintain the Moon and it wall fall away and perhaps be captured by another planet further out in the Solar system. This may take another 500 million years but it suggests that Venus and Mercury (with day lengths of 2802 hrs and 4222.6 hours respectively) may have had moons at one time. This all part of the Planetary Metamorphosis process. <br />Posted by AndyMackay</DIV><br /><br />Actually the planets are moving away from the sun (very very very very very slowly) as the sun loses mass. The moon will never get far enough from the earth to be captured by another planet, once the moon's orbit matches the earth's rotation speed, it will stop moving further away. <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>