In this April 29, 1975 file photo, people try to scale the 14-foot wall of the U.S. Embassy in Saigon, trying to reach evacuation helicopters, as the last of the Americans depart from Vietnam. The Vietnam War ended on April 30, 1975.
Saturn's moon Dione always has one side that faces Saturn, and always has one side that faces away. This is similar to Earth's Moon. Dione should therefore have undergone a significant amount of impacts on its leading half. But the current leading half of Dione is less cratered than the trailing half! A possible explanation is that some impacts were so large they spun Dione, sometimes changing the part that suffered the highest impact rate before the moon's spin again became locked.
Europa : Moon of Jupiter - The sixth-closest moon of Jupiter and the smallest of the four Galilean moons, but it is still the sixth-largest moon in the Solar System. It is primarily made of silicate rock and has a water-ice crust. The core is probably iron-nickel. Europa is slightly smaller than the Moon (Luna)
Black hole...except cutting edge astronomy based on the realization that the universe is electrical in nature insists that black holes are not what conventional science still believes them to be... they are electrical phenomena which take place within the
Saturn's Iapetus: Painted Moon- Vast sections of this strange world are dark as coal, while others are as bright as ice. The composition of the dark material is unknown, but infrared spectra indicate that it possibly contains some dark form of carbon. A leading hypothesis is that the dark material is mostly dirt leftover when relatively warm but dirty ice sublimates.