#FromEarthToTheSolarSystem @FETTSS There's increasing evidence that water & organic molecules (needed 2 form life) were delivered to early Earth by comets: http://ow.ly/8d8nJ
2011-12-29 16:36:34
 | CRKARLA Karla Segura Ch. | Costa Rica Space and Earth Science: Space Exploration, Astronomy, Physics, Geoscience, History, Anthropology, Archeology, Paleontology * Environment and Social Causes. http://spaceandearthscience.blogspot.com/ |