id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
gi-2589	Tichý, Miloš; Honková, Michaela; Tichá, Jana; Kočer, Michal	From Discovery to Impact - Near Earth Asteroids	2012	6	.pdf	application/pdf	2589	147	54	Therefore to avoid further collisions it is necessary to study Near Earth Objects, i.e. small Solar system bodies, whose orbit crosses the orbit of the Earth. By definition, Near Earth Objects (NEOs) are minor planets (asteroids) and comets with perihelion distance less than 1.3 astronomical unit (AU).	cache/gi-2589.pdf	txt/gi-2589.txt