_ On Dec. 23, 1672, Italian astronomer, mathematician and engineer Giovanni Domenico Cassini discovered Rhea (originally christened Sidera Lodoicea), the second-largest of Saturn’s 62 moons. In 2010, a spacecraft named for Cassini would detect a thin oxygen atmosphere around it -- the first such known outside planet Earth._ On Dec. 24, 1945, a fire destroyed the home of George and Jennie Sodder and their nine children in Fayetteville, West Virginia. While their parents and four other siblings escaped, no sign of the remaining five children has ever been found, despite decades-long publicity and numerous investigations by both law enforcement and ...