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• Wise Observatory — The Florence and George Wise Observatory (IAU code 097) is an astronomical observatory owned and operated by Tel Aviv University. It is located 5 km west of the city of Mitzpe Ramon in the Negev desert near the edge of the Ramon Crater, and it is …   Wikipedia

• Wide-field Infrared Survey Explorer — (WISE) WISE prior to its mission into orbit …   Wikipedia

• balloon flight — ▪ aviation Introduction  passage through the air of a balloon that contains a buoyant gas, such as helium or heated air, for which reason it is also known as lighter than air free flight. Unmanned balloons have been used to carry meteorological… …   Universalium

• Asteroid-impact avoidance — Planetary defense redirects here. For defending against alien invasion in fiction, see alien invasion. Artist s impression of a major impact event. The collision between Earth and an asteroid a few kilometres in diameter releases as much energy… …   Wikipedia

• Altair — This article is about the star in the constellation Aquila. For other uses, see Altair (disambiguation). Altair …   Wikipedia

• Proxima Centauri — Coordinates: 14h 29m …   Wikipedia

• Near-Earth object — Asteroid 4179 Toutatis is a potentially hazardous object that has passed within 2.3 lunar distances …   Wikipedia

• Chicxulub crater — Imaging from NASA s Shuttle Radar Topography Mission STS 99 reveals part of the 180 kilometer (112 mi) diameter ring of the crater; clustered around the crater s trough are numerous sinkholes, suggesting a prehistoric oceanic basin in… …   Wikipedia

• Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …   Wikipedia

• Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …   Wikipedia