Difference between revisions 2290303 and 2290304 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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On November 17, 1998, ''Voyager 1'' overtook ''Pioneer 10'' as the most distant man-made object from Earth, at a distance of {{convert|69.419|AU|km|abbr=on}}. It is currently the most distant functioning space probe to receive commands and transmit information to Earth.
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==Rocky-object rocketry==

{{main|Rocketry/Rocky objects|Rocky-object rocketry}}⏎
[[Image:Apollo 11 Saturn V lifting off on July 16, 1969.jpg|thumb|upright=0.7|right|250px|A [[w:Saturn V|Saturn V]] [[w:Saturn (rocket family)|rocket]] launches Apollo 11 in 1969. Credit: NASA.]]
[[Image:Missao Apollo.jpg|thumb|right|250px|This diagram shows each of the rocketry steps needed for lunar orbit and landing. Credit: NASA.]]
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