Near-Earth object Near-Earth object A near-Earth object (NEO) is any small Solar System body whose orbit brings it to proximity with Earth. By convention, a Solar System body is a NEO if its closest approach to the Sun (perihelion) is less than 1.3 astronomical units (AU). If a NEO's orbit crosses the Earth's and the object is larger than across, it is considered a potentially hazardous object (PHO). Most known PHOs and NEOs are asteroids, but a small fraction are comets. There are over 19,000 known near-Earth asteroids (NEAs), over a hundred short-period near-Earth comets (NECs), and a number of solar-orbiting spacecraft
Earth 2150: The Moon Project Earth 2150: The Moon Project Earth 2150: The Moon Project is a sequel to the real time strategy game "Earth 2150". While the game is in fact a stand-alone game, many consider it an expansion pack because it does little more than provide new missions, and weapons. The story takes place alongside the original game's story. "The Moon Project" was released in 2000 by Strategic Simulations, Inc. Earth's final war is in full swing. The United Civilized States, Eurasian Dynasty, and the Lunar Corporation fight over what is left of the world’s resources in order to escape the blue planet