The explosions that devastated Tianjin yesterday were so powerful, they registered as seismic activity by China’s National Earthquake Network. And the “quakes” geophysicists saw don’t even begin to capture the magnitude of the blasts.
South America's Atacama Desert gets less than a millimeter of rain a year, and some areas have probably never received rainfall. Yet there are rocks in the desert that seem to have been eroded by water. What's going on here?