asteroids Definition

planetoid, angular, angulate, minor planet, star-shaped, planets, comets, meteoroids, asteroid belt, meteorites, galaxy, cosmic rays, andromeda galaxy, orbits, supernovae, quasars, moons, ejecta, milky way galaxy, gamma rays, neutron star, oort cloud, spacecraft, cassini, neutrinos, exoplanet, astronomers, moonlet, magnetosphere, planetary, nebulae, meteors, iapetus, jovian, pulsars, muons, novae, spherules, galactic, lunar crater, craters, silicates, planetesimal, neutrons, protons, omega centauri, cosmic ray, phobos, enceladus, large magellanic cloud, martian, astrophysical, mimas, cosmic radiation, uranus, planetary nebula, positrons, cosmos, triangulum, subatomic particle, atoms, fomalhaut, particles, chondrites, radial velocity, lutetia, interstellar space, interstellar medium, telescopes, astrometry, antiparticles, interplanetary dust, observatories, satellites, chondrules, exosphere, hadrons, earths, saturnian, spiral galaxy, infrared radiation, aurorae, volcanoes, olivine, hematite, nuclei, hypervelocity, nucleosynthesis, cosmic microwave background, outer space, orbiter, cosmic dust, corot, dixi, small magellanic cloud, heliopause, photons, proxima centauri, gravitons, scarps,