<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Not OTV but EDS. The EDS is used once to send the CEV and LSAM to the moon. The CEV returns on its own like Apollo, no need for the EDS. CEV can not return to the ISS. To much energy (propellant) required to go back into earth orbit. <br />Posted by Cygnus_2112</DIV><br /><br />When you throw out a pile of acronyms, it might be good to give the detail the first time you use one in a thread.</p><p>For example, what is EDS?</p><p>I happen to know what LSAM is, but other's might not. Some might not even know what CEV is.</p> <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>