PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Sign up for the mailing list to get episode notifications and hear special announcements! https://tinyurl.com/yx9cusk5 Check out the Space Time Merch Store https://pbsspacetime.com/ Normal maps are useless inside black holes. At the event horizon - the ultimate point of no return as you approach a black hole - time and space themselves change their character. We need new coordinate systems to trace paths into the black hole interior. But the maps we draw using those coordinates reveal something unexpected - they don’t simply end inside the black hole, but continue beyond. In these maps, black holes become wormholes, and new universes lie on the other side. Hosted by Matt O Dowd Written by Matt O Dowd Graphics by Leonardo Scholzer, Yago Ballarini, & Pedro Osinski Directed by: Andrew Kornhaber Executive Producers: Eric Brown & Andrew Kornhaber End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Special Thanks to our Patreon Sponsors Big Bang Supporters: Alexander Tamas David Nicklas Fabrice Eap Juan Benet Morgan Hough Radu Negulescu Quasar Supporters Christina Oegren Mark Heising Vinnie Falco Hypernova Supporters chuck zegar Danton Spivey Donal Botkin Edmund Fokschaner Hank S John Hofmann John Pollock John R. Slavik Jordan Young Joseph Salomone Julian Tyacke Mathew Matthew O Connor Matthew Ryan Syed Ansar Timothy McCulloch Gamma Ray Burst Supporters A G Adrian Hatch Adrien Molyneux AlecZero Andreas Nautsch Angela Prigge Arefa Ahmad Bradley Jenkins Brandon labonte Brandon Lattin Brian Blanchard Craig Stonaha Dan Warren Daniel Lyons David Bethala DFaulk Douglas Cantrell Eric Kiebler Frederic Simon Geoffrey Short Graydon Goss Greg Smith John Funai John Robinson Josh Thomas Kevin Lee Kevin Warne Kyle Hofer Malte Ubl Michael Conroy Nick Virtue Nick Wright Nickolas Andrew Freeman Patrick Sutton Paul Rose Protius Protius Randall Sylvia Robert Ilardi Scott Gossett Sean Warniaha Shane Calimlim Sipke Schoorstra Steve Bradshaw Tatiana Vorovchenko Tim Stephani Tonyface Tybie Fitzhugh Yannick Weyns Yurii Konovaliuk

Want some fun with your facts? Check out BUSINESS BLAZE: https://www.youtube.com/channel/UCYY5GWf7MHFJ6DZeHreoXgw → Subscribe for new videos two times per week. https://www.youtube.com/channel/UCHKRfxkMTqiiv4pF99qGKIw?sub_confirmation=1 Our sister channels: Biographics - https://www.youtube.com/channel/UClnDI2sdehVm1zm_LmUHsjQ TopTenz - https://www.youtube.com/channel/UCQ-hpFPF4nOKoKPEAZM_THw/ Credits: Host - Simon Whistler Author - Morris M. Producer - Jennifer Da Silva Executive Producer - Shell Harris Business inquiries to admin@toptenz.net Source/Further reading: Brief history before atomic tests: https://www.bikiniatoll.com/history.html See also: https://www.everyculture.com/Oceania/Bikini.html Marshall Islands history and culture: http://mistories.org/intro.php Operation Crossroads: https://www.atomicheritage.org/history/operation-crossroads https://www.smithsonianmag.com/smart-news/crazy-story-1946-bikini-atoll-nuclear-tests-180963833/ The sad story of what happened to the Bikinians during their exodus: https://www.theguardian.com/travel/2002/aug/06/travelnews.nuclearindustry.environment A history of the tests, the islanders, and how Bikini came to mean swimwear: https://theconversation.com/bikini-islanders-still-deal-with-fallout-of-us-nuclear-tests-more-than-70-years-later-58567 UNESCO designation: https://whc.unesco.org/en/list/1339/ History of the Marshall Islands: https://www.britannica.com/place/Marshall-Islands/History History of German colonies in Asia Pacific: https://www.nla.gov.au/selected-library-collections/german-colonies-in-the-pacific Radioactivity of the Marshall Islands: https://www.vice.com/en_us/article/jpgjwg/after-70-years-of-fallout-will-bikini-atoll-ever-be-safe-again-marshall-islands-nuclear-tests Castle Bravo: https://www.atomicheritage.org/history/castle-bravo https://medium.com/war-is-boring/those-who-witnessed-castle-bravo-looked-into-armageddon-fa7610578413 Footage of the Baker test: https://www.youtube.com/watch?v=zTk0IH_Y0iY Bikini Atoll climate change: https://grist.org/article/the-u-s-forced-bikini-islanders-to-deal-with-nuclear-tests-and-climate-change-now-its-walking-away/

Watch as the Sun and the Milky Way s warped disk travel around the center of the galaxy in this animation created using ESA Gaia mission data. - A galactic crash could be behind Milky Way s warped appearance: https://www.space.com/milky-way-warp-caused-collision-smaller-galaxy.html Credit: Space.com / animation: ESA / produced & edited by Steve Spaleta (http://www.twitter.com/stevespaleta)

Date Night is a pretty funny movie you probably forgot. But it still has sins!! Tomorrow: There s no video tomorrow, what are you talking about? Thursday: Ninja sins! Remember, no movie is without sin! Which movie s sins should we expose next?! •CinemaSins website: https://www.cinemasins.com • •Channels• --TVSins: https://www.youtube.com/channel/UCe4bOvc1mYxFcQ5xPb9Zmow --MVS: https://www.youtube.com/channel/UCUBq8oBRVTsMpjWiHfjJpDw •Members get MORE! ALL videos early, bonus videos and podcasts, merch discounts and MORE on Patreon!• https://www.patreon.com/CinemaSins •Merch!• https://teespring.com/stores/cinemasins •Podcasts• --SinCast- A weekly chat with Jeremy, Chris and Barrett about their love and hatred for movies and entertainment. https://cinemasins.libsyn.com/ --Behind the Sins: CinemaSins writers Aaron, Jonathan and Deneé, give a behind the scenes look at what it takes to release the previous week s videos across the CinemaSins brand. https://redcircle.com/shows/behindthesins •Writers Social• Jeremy: https://twitter.com/cinemasins Chris: https://www.facebook.com/SinCastCinemaSins Barrett: https://twitter.com/MusicVideoSins Aaron: https://twitter.com/aarondicer Jonathan: https://twitter.com/samloomis13 Deneé https://twitter.com/DeneeSays •Discord: Request on Facebook or Reddit! •Reddit: https://www.reddit.com/r/CinemaSins/ •Jeremy s Book: https://cinemasins.com/book #CinemaSins #EverythingWrongWith #DateNight

Tony Robinson goes on the trail of William Wallace, the Scottish warrior, better known as Braveheart. Was he really the way the film portrayed him? A charming, selfless patriot? It s like Netflix for history... Sign up to History Hit, the world s best history documentary service and get 50% off using the code AbsoluteHistory https://bit.ly/3vn5cSH This channel is part of the History Hit Network. Any queries please contact: owned-enquiries@littledotstudios.com

Mahati has recently had a baby: Padma. But because of her social standing, higher ranked females are entitled to bully her – or even take her baby away to practice their mothering skills. From the Series: Into the Wild India: Temple Monkeys on the Run

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👑We highly recommend trying Imperator: Rome and learn more about the free Archimedes-update https://bit.ly/2QIrBqC Sponsored by Paradox Interactive In the new Kings and Generals historical animated documentary, we will describe the Christianization of Scandinavia and how the Norse abandoned their pantheon in Sweden, Denmark, Norway, and Iceland. Support us on Patreon: http://www.patreon.com/KingsandGenerals or Paypal: http://paypal.me/kingsandgenerals We are grateful to our patrons and sponsors, who made this video possible: https://docs.google.com/document/d/1_RlpYcXb7Q-bF6Lyv0NZHeg_49HuX_oifliX5Rt6Ny0/edit?usp=sharing The video was made by our friend Michael Merc https://bit.ly/340tcO2 while the script was researched and written by Johan Melhus This video was narrated by Officially Devin (https://www.youtube.com/channel/UCU0-VII-V376zFxiRGMeZGg & https://www.youtube.com/channel/UC79s7EdN9uXX77-Ly2HmEjQ) ✔ Merch store ► https://teespring.com/stores/kingsandgenerals ✔ Patreon ► https://www.patreon.com/KingsandGenerals ✔ Podcast ► Google Play: http://bit.ly/2QDF7y0 iTunes: https://apple.co/2QTuMNG ✔ PayPal ► http://paypal.me/kingsandgenerals ✔ Twitter ► https://twitter.com/KingsGenerals ✔ Facebook ► https://www.facebook.com/KingsGenerals ✔ Instagram ►http://www.instagram.com/Kings_Generals Production Music courtesy of Epidemic Sound: http://www.epidemicsound.com #Documentary #Vikings #Christianization

Check out the full journey that Tony Beets underwent during the Series 10 of Gold Rush! Subscribe to Discovery UK for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery UK on Twitter: http://www.twitter.com/DiscoveryUK

這群蝌蚪正努力地朝牠們的未來游去。若仔細看，此時的蝌蚪已長有後腿。多數蛙類的蝌蚪期長一至三個月。等到牠們變態成成蛙後，就能到陸地上活動囉。 ★想看到最新鮮影片或與國家地理小編聊天互動的請訂閱★ 更多精彩內容在國家地理官網：http://www.natgeomedia.com/ 歡迎來國家地理粉絲頁按讚：https://www.facebook.com/natgeomedia/ 請在Instagram上關注我們：https://goo.gl/1rRAI8

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對住在在毛孔內部的蠕形蟎（Demodex）來說，你的臉是個能讓牠們盡情交配與進食的天堂。 ★想看到最新鮮影片或與國家地理小編聊天互動的請訂閱★ 更多精彩內容在國家地理官網：http://www.natgeomedia.com/ 歡迎來國家地理粉絲頁按讚：https://www.facebook.com/natgeomedia/ 請在Instagram上關注我們：https://goo.gl/1rRAI8

http://www.selfrelianceoutfitters.com Please Visit my Amazon Influencer page and my web site to see most of the gear I recommend and use https://www.amazon.com/shop/influencer-36cfcb18 Check us out on Instagram at- https://www.instagram.com/pathfindersurvival/ We have a large Discussion Group for Learning on FB at-https://www.facebook.com/groups/178558438998777/ Check us out on FB at- https://www.facebook.com/woodlandbushcraft/ https://www.facebook.com/pathfinderschoolllc/ https://www.facebook.com/vikingbushcraft/ For a full media kit or further questions contact me direct at pathfindersurvival@gmail.com #springwater #DaveCanterbury #survival

The two-wheel chariot was also a two-crew chariot: a driver handling the reins, and an archer unleashing a volley of arrows. Its speed and maneuverability made it the scourge of ancient battlefields. From the Series: World of Weapons: Faster Than the Enemy https://bitly.com/2UlLwy3

海研船鸚鵡螺號（E/V Nautilus）的科學家在墨西哥灣的深處撞見了一個超大驚喜。當時他們正試圖用無人水下載具進行直播，但畫面中突然出現了一頭抹香鯨！ ★想看到最新鮮影片或與國家地理小編聊天互動的請訂閱★ 更多精彩內容在國家地理官網：http://www.natgeomedia.com/ 歡迎來國家地理粉絲頁按讚：https://www.facebook.com/natgeomedia/ 請在Instagram上關注我們：https://goo.gl/1rRAI8

在澳洲約有50%的無尾熊都染有披衣菌（chlamydia）。雖然有別於感染人類的菌株，但無尾熊的披衣菌也是透過交配傳染。披衣菌會造成嚴重的尿道感染、失明甚至死亡。 ★想看到最新鮮影片或與國家地理小編聊天互動的請訂閱★ 更多精彩內容在國家地理官網：http://www.natgeomedia.com/ 歡迎來國家地理粉絲頁按讚：https://www.facebook.com/natgeomedia/ 請在Instagram上關注我們：https://goo.gl/1rRAI8

Help me break 50 million subscribers: http://bit.ly/2LgG7m5 Thank you for changing my life. I love you guys! Check out the story on how I got 10 million subscribers: https://youtu.be/WLqHHZ7efE0 I Found 50 iPhones, 17 Guns, 15 GoPros and 22 Wedding Rings Underwater! (Road to 10 Million) https://youtu.be/WLqHHZ7efE0 I Was in a Bad Accident, Rushed to the ER https://youtu.be/CU4Hbb1YdY4 Video edited by Beau Darkens: https://www.instagram.com/beaudarkens/ Check out my top 10 videos! Playlist: https://goo.gl/o7xFC4 Found Jewelry Underwater in River While Scuba Diving for Lost Valuables! (Unbelievable) https://youtu.be/-jSirHVQAOk Found Lost iPhone, Fishing Pole and Swimbaits Underwater in River! (Scuba Diving) | DALLMYD https://youtu.be/dPTglkp4Lpw I Found a Fidget Spinner, 5 Phones and a Bike Underwater in the River! (Scuba Diving) https://youtu.be/yOjmWlPMF9g I Found 8 Guns, 7 iPhones, 6 GoPros, and 5 Apple Watches Underwater in the River! Best Finds of 2018 https://youtu.be/Rqctpam4o0o I Found 9 Wedding Rings Underwater in the Ocean While Metal Detecting! $10,000+ (Returned to Owner) https://youtu.be/a5vg_Yi42Ok Found Lost iPhone 7 in River While Scuba Diving! (w/ Girlfriend) | DALLMYD https://youtu.be/Y3JE4_c_-PI Found Human Remains Underwater in River! (Police Called) | DALLMYD https://youtu.be/cQ8ia7PejfY Found Possible Murder Weapon Underwater in River! (Police Called) https://youtu.be/eAmn4pxIclc Found 3 GoPros, iPhone, Gun and Knives Underwater in River! - Best River Treasure Finds of 2016 https://youtu.be/UZHDwemAZ-k Found a Working iPhone X Underwater in the River! (Returned Lost iPhone to Owner) https://youtu.be/VfrsFd5NcCs About DALLMYD: Hello! My name is Jake. I m a treasure hunter, scuba diver and YouTuber w/ 10,000,000+ subscribers! I enjoy traveling to new destinations and sharing my adventures on YouTube! Follow me on Instagram, Twitter and Tiktok Instagram: https://www.instagram.com/DALLMYD Twitter: https://twitter.com/DALLMYD TikTok: DALLMYD Send me something in the mail! My PO Box DALLMYD P.O. Box 211 Phenix City, Alabama 36868-0211 Have any questions? Feel free to email me anytime! I m open to discussing about collaborations, sponsorships, product reviews and more! Email: dallmyd@nightmedia.co #RiverTreasure #dallmyd #ScubaDiving #10Million #DiamondPlayButton #Vlog "Found" YouTube s Diamond Play Button Underwater! (10 Million Subscriber Award) https://youtu.be/67D-B_gj4W8 DALLMYD https://www.youtube.com/user/DALLMYD

Although Bakewell s history is steeped in agriculture, the industrial revolutions had an enormous impact. The antiques and collectables emanating from this rich and varied past place it firmly on the Great Antiques Map of Britain. Tim Wonnacott visits the Bakewell Food Festival in the heart of the glorious Derbyshire Peak District, where locals have brought along their fascinating objects, including Victorian baking tins used by the alleged inventor of the famous Bakewell puddings and antique wall brackets bought from the illustrious Chatsworth House estate. Tim goes deep underground in search of the precious mineral Blue John, which is unique to the area, and investigates the story of a man who revolutionised fishing in the grounds of Haddon Hall. To be the first to watch more full length documentaries, subscribe here: https://www.youtube.com/channel/UCb7xZQi7F3RW7BNtR57cNnA?sub_confirmation=1 Welcome to Reel Truth History, the home of gripping and powerful documentaries. Here you can watch both full length documentaries and series that explore some of the most comprehensive pieces of world history. #Royal #History #Antiques

Female hornbill moms display a remarkable amount of faith and trust in their male partners. If the male doesn’t come back to their sealed-off nest with food, she and her chick will starve. From the Series: Into the Wild India: Rajan: A Monkey on a Mission

Female hornbill moms display a remarkable amount of faith and trust in their male partners. If the male doesn’t come back to their sealed-off nest with food, she and her chick will starve. From the Series: Into the Wild India: Rajan: A Monkey on a Mission