Which planet has a year of 687 days, a day of 24 hours 37 minutes, a diameter twice that of the moon and a mass one tenth of the earth?
Origin of the Moon of the present size of Earth, and another the diameter of Mars (half of the terrestrial radius and a tenth of its mass). The colliding body has sometimes been referred to as Theia, the mother of Selene, the Moon goddess in Greek mythology. This size ratio is needed in order for the resulting system to have sufficient angular momentum to match the current orbital configuration. Such an impact would have put enough material into orbit around Earth to have eventually accumulated to form the Moon. Computer simulations show a need for a glancing blow, which causes a portion of the
Earth: Voices of a Planet their existence was unknown until shortly before the album was created. The album was nominated for a Grammy award in 1991. Earth: Voices of a Planet Earth: Voices of a Planet is an album released by Paul Winter in 1990. The album was a commissioned for the 20th anniversary of Earth Day, and was premiered in Times Square by the Paul Winter Consort and special guests. The album is a tribute to the Earth, and features at least one instrument or voice from every continent. The album also features animal calls woven into the music. In particular, recordings of elephant