<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Some LEDs Grow Lights have shown promise. Fine tuning them for the cultivation of bio-generated resources for space habitation would be right up NASA's alley.But, cracking water seems to be very effective. I think any plans for generating atmosphere for a space habitat must always first consider the availability of water. If it's available, then it can be used and, more importantly, recycled.The Elektron, oxygen generator. <br /> Posted by a_lost_packet_</DIV></p><p>Yeah, it's pretty darned efficient. The only problem is that it consumes water, so it's not self-sustaining.</p> <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>