On Thu, Mar 3, 2011 at 4:23 PM, Horace Heffner <hheff...@mtaonline.net> wrote:
> Source article on the lava tube: > > http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1484.pdf > > 41st Lunar and Planetary Science Conference (2010) > > IDENTIFICATION OF LUNAR VOLCANIC TUBES, A POTENTIAL SITE FOR HUMAN > SETTLEMENT USING 3D CHANDRYAAN 1 – TMC DATA . A.S. Arya1, R.P.Rajasekhar1, > Ajai1 , A.S Kiran Kumar1, R.R. Navalgund1 , Space Applications Centre, > Indian Space Research Organization, Ahmedabad–380 015 (India), > arya...@sac.dos.gov.in. Some believe they are already in use but not by humans! T
