1) Native American mythology is incredibly diverse, with numerous tribes and cultures across North and South America having their own unique traditions and stories. It encompasses deities, nature spirits, tricksters, and heroes, reflecting the deep connection between indigenous peoples and the natural world.

2) The most-watched TV series finale in the United States was "MAS*H," with an estimated 105 million viewers.

3) The Serengeti National Park, located in Tanzania and extending into Kenya, is renowned for its vast savannahs, diverse wildlife, and the annual wildebeest migration. It is a UNESCO World Heritage site and a popular destination for safari enthusiasts and nature lovers.

4) The process of nuclear fusion powers the sun and other stars, fusing hydrogen atoms together to form helium and releasing vast amounts of energy in the process.