The Moon is thought to have formed when an object roughly the size of Mars hit the Earth. The impact was so violent that it threw large amounts of the Earth's mantle into orbit. This material evenually coalesced and formed the Moon.
Ansel Easton Adams was an American photographer and environmentalist. His black-and-white landscape photographs of the American West, especially Yosemite National Park, have been widely reproduced on calendars, posters, and in books.
- Norman Rockwell - American illustrator best known for magazine covers. - Pablo Picasso - Spanish-born artist who was one of founders of Cubism. - George Braque - French painter who was also one of founders of Cubism. - Edgar Degas - French painter who was one of founders of Impressionism.