Valles Marineris: Ko te Grand Canyon o Mars July 3, 2014 Na Tauhi e Space A faaite i tenei:Valles Marineris: Ko te Grand Canyon o Mars http://t.co/G2gqXSVAzV #me ētahi atu #March #Viking #USGS #i roto i te pic.twitter.com/quzAiAebEy — Tauhi e Space (ObservingSpace) Kia 11, 2014 A faaite i tenei: