→Thruster incident: cause and outcome: Quote from book
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Rescuing 2 sources and tagging 0 as dead.) #IABot (v2.0.9.5) (Whoop whoop pull up - 14297
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'''Gemini 8''' (officially '''Gemini VIII''')<ref name="titans">{{cite book
| last1 = Hacker
| first1 = Barton C.
| last2 = Grimwood
| first2 = James M.
| title = On the Shoulders of Titans: A History of Project Gemini
| chapter = Chapter 11 Pillars of Confidence
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| page = 239
| url = http://www.hq.nasa.gov/office/pao/History/SP-4203/toc.htm
| access-date = 2013-09-26
| archive-date = 2010-01-13
| archive-url = https://web.archive.org/web/20100113132344/http://www.hq.nasa.gov/office/pao/History/SP-4203/toc.htm
| url-status = dead
}} With Gemini IV, NASA changed to Roman numerals for Gemini mission designations.</ref> was the sixth crewed spaceflight in [[NASA]]'s [[Project Gemini|Gemini]] program. It was launched on March 16, 1966, and was the 14th crewed American flight and the 22nd crewed spaceflight overall.{{efn|This count includes two [[X-15]] flights higher than the [[Kármán Line]] at {{convert|100|km|nmi mi ft|abbr=off|sp=us|0}}.}} The mission conducted the first docking of two spacecraft in orbit, but also suffered the first critical in-space system failure of a U.S. spacecraft which threatened the lives of the astronauts and required an immediate abort of the mission. The crew returned to Earth safely.
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| year = 1976
}}
* {{cite book
|archive-date = 2010-01-13
}}▼
|archive-url = https://web.archive.org/web/20100113132344/http://www.hq.nasa.gov/office/pao/History/SP-4203/toc.htm
|url-status = dead
* {{cite press release
|author=NASA
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