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.
Ansel Adams, photographer and environmentalist, was born in San Francisco, California, the son of Charles Hitchcock Adams, a businessman, and Olive Bray. The grandson of a wealthy timber baron, Adams grew up in a house set amid the sand dunes of the Golden Gate.