Difference between revisions 2241941 and 2243985 on enwikiversity

[[Image:Skylab-73-HC-440HR.jpg|thumb|right|250px|The Saturn V SA-513 lifts off to boost the Skylab Orbital Workshop into Earth orbit on March 14, 1973. Credit: NASA.]]
Astronomy is performed by location and is subject to local conditions. The shapes and sizes of observatories have changed over time, as have their altitude. The motivations for putting an observatory manned or unmanned at different altitudes has led to a great variety in '''lofting technology'''.
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|accessdate=2011-11-14 }}</ref> The CFHT is at an altitude of 4,204 meters [[w:Mauna Kea|Mauna Kea]] last erupted 4,000 to 6,000 years ago [~7,000 b2k]. The Mauna Kea Observatories are used for scientific research across the electromagnetic spectrum from visible light to radio, and comprise the largest such facility in the world.
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==Balloons==
{{main|Balloons}}
[[Image:Wallops Balloon With BESS Payload DSC00088.JPG|thumb|left|250px|A research balloon is readied for launch. Credit: NASA.]]
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