<font color="yellow">Future, larger space stations; Mars mission hardware</font><br /><br /><br />mars missions are very away from now... 2040 up... and it will use BETTER vehicles than CEV and SDHLV... then, to-day, Mars is only "science fiction"...<br /><br /><br />the half-made LEGO-like ISS cost is probably around $100 billion... find money for a LARGER space station is "economy science fiction"...<br /><br /><br />SDHLV may be used for interplanetary probes, but, future probes will be SMARTER than now NOT heavier... NOT 125 tons!!!<br /><br />due to VSE, Shuttle and ISS, NASA has (and will have) great lack of funds for probes, so, they will cut also many projects of LITTLE probes... <br /><br />about SDHLV costs... wait and you will see