NOVANOVA Wonders What's the Universe Made Of? Season 45 Episode 106 | 53m 11s The universe is hiding something. In fact, it is hiding a lot. Everything we experience on Earth, the stars and galaxies we see in the cosmos—all the “normal” matter and energy that we understand—make up only 5% of the known universe. Find out how scientists are discovering new secrets about the history of the universe, and why they’re predicting a shocking future. Aired: 04/04/18 Expires: 05/29/21 Rating: TV-PG Closed CaptioningVideo has closed captioning.Buy Now:PBSBuy DVDs AppleBuy on iTunes AmazonBuy on AmazoncheckmarkAdd to WatchlistWatch PreviewProblems Playing Video?Report a ProblemClosed CaptioningShare:Share this video on FacebookFacebookShare this video on TwitterTwitterShare this video on Google PlusGoogleShare this video via EmailE-mailEmbedEmbed Code for this videoEmbed CodeNOVANOVA Wonders What's the Universe Made Of?Season 45 Episode 106Width in pixels px Height in pixels px Copied to your clipboardLabelCopy to ClipboardClick to copy embed code for videoCloseCloseReport 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.CloseCloseClose Learn More Down What Is Dark Matter? A New Clue! A signal from the dawn of the universe may hold surprising clues about dark matter. Dark Matter's Invisible Hand If dark matter interacts with regular matter as predicted, it could cause consequences. A Scientist Walks Into A Bar #2 A scientist must explain the Big Bang and dark energy so two comedians can understand it. What is Dark Energy? Astronomers discovered dark energy in 1998, but are we any closer to understanding it?Episode Links Shop NOVA Email Newsletter NOVA Wonder's "What's the Universe Made Of?" HomepageNational corporate funding for NOVA Wonders is provided by Draper. Major funding for NOVA Wonders is provided by National Science Foundation, the Gordon and Betty Moore Foundation, the Alfred P. Sloan Foundation and public television viewers, with additional funding for “Are We Alone?” and “What’s the Universe Made Of?” provided by the John Templeton Foundation. This material is based upon work supported by the National Science Foundation under Grant No. DRL-1420749. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.