1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day 2) the cardinal number that is the sum of one and one and one 3) a rapid automatic system to detect plastic explosives in passengers' luggage using x-ray technology and computers; designed for use in airports DOWN 1) move fast 2) a resource 3) a female person who has the same parents as another person ** Scroll down for solution. ** Are you sure you want to peek? has iii eds