The Los Angeles fires are a national disaster of epic proportions. City officials, California Gov. Gavin Newsom and President-elect Donald Trump have traded accusations about what caused this crisis. But as an engineering professor who lives...
Researchers have discovered two sets of ancient wave ripples on Mars, signatures of long-dried bodies of water preserved in the rock record. Wave ripples are small undulations in the sandy shores of lakebeds, created as wind-driven...
