Stock Photo: From left to right: Spacewatch 1.8 m telescope, Spacewatch.9 m telescope, Steward Observatory´s Bok 2.3 m telescope, Kitt Peak National Observatory Mayall 4 m telescope, with the constellation Orion above, Kitt Peak National Observatory, near Tuscon Ariz. From left to right: Spacewatch 1.8 m telescope, Spacewatch.9 m telescope, Steward Observatory´s Bok 2.3 m telescope, Kitt Peak National Observatory Mayall 4 m telescope, with the constellation Orion above, Kitt Peak National Observatory, near T