Project Gemini: 2nd stage in the US program to reach the moon, in which a team of astronauts met and connected with another spacecraft while in orbit. Project Apollo: final stage in the US effort to reach the moon-on July 20, 1969, Neil Armstrong was the 1st human to set foot on core i3 2125 hackintosh
lunar surface. Lesson 3 space shuttle: reusable spacecraft that carries astronauts, satellites, and other materials to and from space. Lesson 1 sphere: round, 3-dimensional object whose surface at all points is the same distance from its center. Lesson 2 moon phase: changing appearance of the moon as seen from earth, which depends on the relative utstar xv6700 manual
of the moon, Earth, and sun. Lesson 3 mascon: concentration of mass on the moon located beneath an impact basin. Oort Cloud: cloud of comets that completely surrounds hackijtosh solar system and that is located beyond the orbit of Pluto.