NASA has planned to build a Starshade to look for Alien Planets. Starshade exoplanet-hunting missions may be technologically daunting.
The giant asteroid Pallas reaches opposition on Friday July 29, 2011, in the tiny constellation of Sagitta.Despite its size, the 326-mile (524-kilometer) wide Pallas is still too small and far away to be visible with the naked eye.You can see it with the help of binoculars and small telescopes as it sails westward across the tiny constellation of Sagitta, the arrow.Sagitta has no bright stars, but is easily visible in a dark sky with the naked eye, or with binoculars in the city. It is very easy to locate, right at the center of the “summer triangle” formed by the three bright stars Vega (in Lyra), Deneb (in Cygnus) and Altair (in Aquila).
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