What it is made of; Gas, Rock, Metals, makes no difference.<br />It's what it all "weighs".<br /><br />Jupiter has 1410 times the volume of the earth, so it's 1410 times bigger.<br /><br />The mass is 318 times that of earth. It is less than the volume difference because Jupiter has so much hydrogen, as opposed the the earth's heavier materials. If it were made of the same stuff as the earth it would be 4 times heavier (or we would be 4 times lighter.)<br /><br />Wayne <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>