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Pebbles on Mars Likely Traveled Tens of Miles Down a Riverbed,Penn Study Finds
Pebbles Mars Traveled Tens Miles Down a Riverbed,Penn Study
2015/11/13
While new evidence suggests that Mars may harbor a tiny amount of liquid water, it exists today as a largely cold and arid planet. Three billion years ago, however, the situation may have been much di...
Study: Global rainfall satellites require massive overhaul
Global rainfall satellites massive overhaul
2015/3/4
Circling hundreds of miles above Earth, weather satellites are working round-the-clock to provide rainfall data that are key to a complex system of global flood prediction – with flooding only expecte...
Geotechnical study of the oan/spm。