关于这张图
ISS020-E-033530 (21 Aug. 2009) --- Black Point Lava Flow in northern Arizona, seen in this image photographed by an Expedition 20 crew member on the International Space Station, is an excellent setting for training and systems testing for future exploration missions to the moon. Seen from space, the other-worldly footprint of the dark black basaltic lava creates a striking landscape. The flow is part of Arizona?s San Francisco Volcanic Field, a group of geologically young (approximately 6 million to less than one thousand years old, according to scientists) volcanoes, flows and cinder cones lo…
