NOVA At the Edge of Space52:52Video duration: 52:52 Aired: 11/20/13 Expires: 12/15/15Rating: NRVideo has closed captioning. Can scientists unravel the mysterious phenomena that lurk between Earth and space? Add to WatchlistBuy this Video:Buy this video on iTunesBuy DVDShare:Share this video on FacebookShare this video on TwitterShare this video via EmailShare this video on Google PlusEmbed Code for this videoEmbed CodeNOVAAt the Edge of SpacePremiere Date: Nov. 20, 2013, 8 p.m.Width in pixels px Height in pixels px Please copy this text to your clipboard×CloseProblems Playing Video ?Report a problemClosed CaptioningReport a ProblemBefore you submit an error, please consult our Troubleshooting Guide.Type of ErrorVideo doesn't loadVideo loads, but doesn't playVideo jumps back/forwardOnly audio is streamingSponsorship playback errorOtherPlease add more detailsCancelSubmit ReportYour report has been successfully submitted. Thank you for helping us improve PBS Video.Close×CloseEpisode LinksNOVA's "At the Edge of Space" homepageE-Mail NewsletterShop NOVA Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by Roger and Vicki Sant.