Editing Sound barrier (section)

====Alan Eustace====
In October 2014, [[Alan Eustace]], a senior vice president at [[Google]], broke Baumgartner's record for highest sky-dive and also broke the sound barrier in the process.<ref name="NYTimes2">John Markoff. [https://www.nytimes.com/2014/10/25/science/alan-eustace-jumps-from-stratosphere-breaking-felix-baumgartners-world-record.html "Alan Eustace Jumps From Stratosphere, Breaking Felix Baumgartner’s World Record"] {{Webarchive|url=https://web.archive.org/web/20190616015706/https://www.nytimes.com/2014/10/25/science/alan-eustace-jumps-from-stratosphere-breaking-felix-baumgartners-world-record.html |date=2019-06-16 }}. ''New York Times''. October 24, 2014.</ref> However, because Eustace's jump involved a [[drogue parachute]], while Baumgartner's did not, their vertical speed and free-fall distance records remain in different categories.<ref name=FAI>{{cite web |url=http://www.fai.org/fai-slider-news/37012-baumgartners-records-ratified-by-fai |access-date=October 26, 2014 |date=February 22, 2013 |title=Baumgartner's Records Ratified by FAI! |work=[[Fédération Aéronautique Internationale|FAI]] |archive-url=https://web.archive.org/web/20130302153718/http://www.fai.org/fai-slider-news/37012-baumgartners-records-ratified-by-fai |archive-date=March 2, 2013 |url-status=dead |df=mdy-all }}</ref><ref>{{cite web |url=http://www.uspa.org/NewsEvents/News/tabid/59/ctl/Detail/mid/797/xmid/39702/xmfid/19/Default.aspx |access-date=October 26, 2014 |date=October 24, 2014 |title=Alan Eustace, D-7426, Bests High-Altitude World Record |work=[[U.S. Parachute Association]] |url-status=dead |archive-url=https://web.archive.org/web/20151003015830/http://www.uspa.org/NewsEvents/News/tabid/59/ctl/Detail/mid/797/xmid/39702/xmfid/19/Default.aspx |archive-date=October 3, 2015 }}</ref>