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
Around the Moon sea. This turns out to be the returning projectile, and the three men inside are found to be alive and are rescued. They are treated to lavish homecoming celebrations as the first people to leave Earth. Around the Moon Around the Moon (, 1870), Jules Verne's sequel to "From the Earth to the Moon", is a science fiction novel which continues the trip to the moon which was only partially described in the previous novel. It was later combined with "From the Earth to the Moon" to create "A Trip to the Moon and Around It". "From the Earth to