NASA Astronaut Group 21 eight people, Jessica Meir, Ph.D., Major Nicole Mann, Lt. Commander Josh Cassada, Ph.D., Lt. Colonel Tyler Hague, Cristina Hammock, Major Andrew Morgan, M.D., Lt. Commander Victor Glover, and Major Anne McClain. On April 9, 1959 the National Aeronautics and Space Administration (NASA) announced the finalists for Astronaut Group 1. This group of seven astronauts, also sometimes known as the "Original Seven" or the "Mercury Seven" were a part of the first human spaceflight program, called Project Mercury. Since the original group, the total number of astronaut groups has grown to 22 as of 2017. The class joined 47 other active
Seven Heavens seven corresponds to the seven classical planets known to antiquity. Ancient observers noticed that these objects moved at different paces in the sky both from each other and from the fixed stars beyond them: Mercury, Venus, the Moon, the Sun, Mars, Jupiter, and Saturn. Unlike comets, which appeared in the sky with no warning, they did move in regular patterns that could be predicted. They also observed that objects in the sky influenced objects on earth, as when movements of the sun affect the behavior of plants or movements of the moon affect ocean tides. While others believe the seven