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April 9, 2012 - Mercury’s Marvelous Morphology

9 Apr 2012, 04:00 UTC
April 9, 2012 - Mercury’s Marvelous Morphology
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The Week in SpaceApril 9-15 2012 Mercury’s Marvelous Morphology In March 2011, MESSENGER became the first spacecraft to enter orbit around Mercury. During its first 176 days in orbit, equal to one solar day on Mercury, MESSENGER’s dual imaging system acquired over 75,000 images with both wide-angle and narrow-angle cameras. This data produced a high-resolution base map of the morphology (shape and texture) of ninety percent of the planet’s surface. MESSENGER also collected surface color data using eight separate narrow-band color filters. This image was created by using three images acquired as part of the color base map with the wavelengths of 1000, 750, and 430 nanometers displayed in red, green, and blue, respectively. The bright rayed crater at the bottom is Snorri, 21 kilometers (13 miles) in diameter.Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Carnegie Institution of Washington Weekly CalendarApril 9-15, 2012Holidays - Sky Events - Space History Monday 9Easter Monday (Canada) Vesta in conjunction with Sun 1959: NASA selects original seven Mercury astronauts1994: STS-59 Endeavour launched Tuesday 10Pluto appears stationary 1919: John C. Houbolt born Wednesday 111960: Project Ozma started1970: Apollo 13 launched1980: Viking 2 lander mission ends1984: Challenger retrieves Solar Max1986: Halley’s Comet ...

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