They're making a pun -- in English, "nut" is also slang for testicle. <img src="/images/icons/wink.gif" /> (The article is really talking about the kind of nut that is threaded onto a bolt to secure it.)<br /><br />Falcon 1 is a new rocket. Once all the bugs are worked out, it will be the first privately-developed liquid-fueled satellite launch vehicle, and the first privately-developed ground-launched vehicle as well. (The only other privately developed launch vehicle is Pegasus, which is solid-fueled and air-launched.) <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em> -- The Tenth Doctor, "Blink"</font></p> </div>