Editing Solar sail (section)

===Sunjammer 2015===
{{Main|Sunjammer (spacecraft)}}
A technology demonstration sail craft, dubbed [[Sunjammer (spacecraft)|''Sunjammer'']], was in development with the intent to prove the viability and value of sailing technology.<ref>{{cite web |url=http://www.nasa.gov/mission_pages/tdm/solarsail/solarsail_overview.html |title=Nasa Solar Sail Demonstration |publisher=www.nasa.gov |date=2013-10-28 |access-date=2013-03-25 |archive-date=2015-12-24 |archive-url=https://web.archive.org/web/20151224180251/http://www.nasa.gov/mission_pages/tdm/solarsail/solarsail_overview.html |url-status=dead }}</ref> ''Sunjammer'' had a square sail, {{convert|38|m}} wide on each side, giving it an effective area of {{convert|1200|m2}}.  It would have traveled from the Sun-Earth {{L1}} [[Lagrangian point]] {{convert|1.5|e6km|mi|abbr=off}} from Earth to a distance of {{convert|3|e6km|e6mi|abbr=off}}.<ref>{{cite web|url=http://www.space.com/19565-worlds-largest-solar-sail-sunjammer.html|title=NASA to Launch World's Largest Solar Sail in 2014|author=Leonard David|publisher=Space.com|date=January 31, 2013|access-date=June 13, 2013}}</ref> The demonstration was expected to launch on a [[Falcon 9]] in January 2015.<ref name="Yahoo">{{cite web|url=https://news.yahoo.com/worlds-largest-solar-sail-launch-november-2014-214450113.html|title=World's Largest Solar Sail to Launch in November 2014|author=Mike Wall|publisher=Space.com|date=June 13, 2013|access-date=June 13, 2013}}</ref> It would have been a secondary payload, released after the placement of the [[Deep Space Climate Observatory|DSCOVR]] climate satellite at the L1 point.<ref name="Yahoo"/> Citing a lack of confidence in the ability of its contractor [[LGarde|L'Garde]] to deliver, the mission was cancelled by NASA in October 2014.<ref>{{cite news|url=http://www.spacenews.com/article/civil-space/42227nasa-nixes-sunjammer-mission-cites-integration-schedule-risk|archive-url=https://archive.today/20141018025439/http://www.spacenews.com/article/civil-space/42227nasa-nixes-sunjammer-mission-cites-integration-schedule-risk|url-status=dead|archive-date=October 18, 2014|title=NASA Nixes Sunjammer Mission, Cites Integration, Schedule Risk|last=Leone|first=Dan|work=spacenews.com|date=October 17, 2014}}</ref>