Nuclear power is clean and constantly evolving and improving. Too bad fear and misinformation has basically killed the nuclear research &amp; development.,(reply>), @ejcmoorhouse that finite amount still lasts for thousands of years.,(reply>), @Martin Lintzgy I never said it did.,(reply>), @ejcmoorhouse <br>Nuclear fission idoes not emit co2.,(reply>), What could the bad guys do if they got past security? Play chess?,(reply>), theonlyari <br>But space exploration cannot  feasible with renewable energy.