NASA.வோட International Space Station (ISS)னு ஒன்னு இருக்குனு கேள்விப்பட்டப ஆச்சரியம்! அப்புறம், Hubbleனு சொன்னாங்க! இப்ப, SOFIA... இன்னும் எவ்ளோடா உங்ககிட்ட இருக்கு! ! ! SOFIA is based on a Boeing 747SP wide-body aircraft that has been modified to include a large door in the aft fuselage that can be opened in flight to allow a 2.5 meter diameter reflecting telescope access to the sky. This telescope is designed for infrared astronomy observations in the stratosphere at altitudes of about 41,000 feet (12 km). SOFIAs flight capability allows it to rise above almost all of the water vapor in the Earths atmosphere, which blocks some infrared wavelengths from reaching the ground. At the aircrafts cruising altitude, 85% of the full infrared range will be available. The aircraft can also travel to almost any point on the Earths surface, allowing observation from the northern and southern hemispheres. Once ready for use, observing flights were expected to be flown 3 or 4 nights a week. Originally scheduled to be operational for 20 years, in its tentative budget for the fiscal year 2015[1][2] NASA announced that unless Germanys aerospace center would contribute significantly more than previously agreed upon, the observatory would be grounded by 2015.[3][4] The SOFIA Observatory is based at NASAs Neil A. Armstrong Flight Research Center at LA/Palmdale Regional Airport, California, while the SOFIA Science Center is based out of NASA Ames Research Center, in Mountain View, California. en.wikipedia.org/wiki/Stratospheric_Observatory_for_Infrared_Astronomy
Posted on: Sun, 10 Aug 2014 15:14:10 +0000
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