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'''National Astronaut Day''' is an American [[commemorative day]] held on May 5 since 2016.[{{cite web|last1=Wall|first1=Mike|title=Happy National Astronaut Day!|url=https://www.space.com/36725-national-astronaut-day-2017-uniphi-facebook-live.html|website=Space.com|date=May 5, 2017|accessdate=May 6, 2018}}] It commemorates the [[Mercury-Redstone 3|first]] United States [[human spaceflight]], on May 5, 1961, piloted by [[astronaut]] [[Alan Shepard]].[{{cite news|url=http://www.techtimes.com/articles/226990/20180505/national-astronaut-day-commemorates-launch-of-first-american-in-space.htm |title=National Astronaut Day Commemorates Launch of First American in Space |publisher=Tech Times |date=May 5, 2018 |accessdate=2018-05-07}}] |
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'''[https://nationalastronautday.uniphigood.com/ National Astronaut Day]''' is an American [[commemorative day]], [https://www.space.com/national-astronaut-day-2024-uniphi-good founded by and a registered trademark of uniphigood, LLC], held on [https://www.prnewswire.com/news-releases/uniphi-space-agency-is-proud-to-announce-the-first-annual-national-astronaut-day-may-5th-2016-300257507.html May 5 since 2016].[{{cite web|last1=Wall|first1=Mike|title=Happy National Astronaut Day!|url=https://www.space.com/36725-national-astronaut-day-2017-uniphi-facebook-live.html|website=Space.com|date=May 5, 2017|accessdate=May 6, 2018}}] It [https://nationalastronautday.uniphigood.com/about/ commemorates] the [[Mercury-Redstone 3|first]] United States [[human spaceflight]], on May 5, 1961, piloted by [[astronaut]] [[Alan Shepard]].[{{cite news|url=http://www.techtimes.com/articles/226990/20180505/national-astronaut-day-commemorates-launch-of-first-american-in-space.htm |title=National Astronaut Day Commemorates Launch of First American in Space |publisher=Tech Times |date=May 5, 2018 |accessdate=2018-05-07}}] |