Summary
Scientists explore the limits of the periodic table, focusing on the potential discovery of new elements in a region known as the "island of stability." This area is theorized to contain heavy elements that could exhibit unusual stability and useful properties, but current methods for creating these elements in laboratories face significant challenges due to their rapid decay.
Recent research highlights the role of neutron star mergers as a cosmic phenomenon that may facilitate the creation of these elusive elements. When neutron stars collide, they produce a massive amount of neutron-rich material, which can lead to the formation of heavy elements through a process known as rapid neutron capture. Observations from such events, including the first detected neutron star merger in 2017, suggest that these collisions are crucial for understanding the origins of heavy elements in the universe.
While laboratory techniques have allowed scientists to create super-heavy elements, achieving the right neutron-to-proton ratio remains a hurdle. Theoretical predictions suggest that the island of stability may contain elements with half-lives ranging from hours to years, making them detectable under the right conditions. Future observations of neutron star mergers could provide critical evidence for the existence of these stable isotopes, potentially reshaping our understanding of nuclear physics and the periodic table.
Show Notes
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Scientists have been slowly extending the periodic table one element at a time, pushing to higher and higher masses, and have discovered some incredibly useful materials along the way. But the elements at the current end of the table are so unstable that they decay almost as soon as they’re created in our particle accelerators. Have we reached the end of the line of discoverable elements? There are new rows of the periodic table to unlock, and more stable versions of known heavy elements to synthesize—and while our accelerators are coming up short, astronomers have found a strange cosmic phenomenon that may populate the periodic table beyond our wildest dreams.
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Hosted by Matt O'Dowd Written by Matt Caplan & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Executive in Charge for PBS: Maribel Lopez Director of Programming for PBS: Gabrielle Ewing Assistant Director of Programming for PBS: John Campbell
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PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 26-08-19Check out the new Space Time Merch Store!https://pbsspacetime.com/Support Space Time on Patreonhttps://www.patreon.com/pbsspacetimeDo you want to major in Astrophysics? Are you thinking about becoming (or ever just wondered how one becomes) an Astrophysicists? Do you want to know Matt O’Dowd’s origin story? Then buckle up and enjoy the ride and try your astrophysics skill in calculating bubble universes to try to win some free Space Time Swag from the Merch Store. Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Murilo LopesDirected by: Eric BrownProduced By: Kornhaber BrownTo Jump to Challenge Question: https://youtu.be/n8cEZM1lN5g?t=617Email Challenge Answer to by 9/9/19: [email protected] line: Eternal Inflation ChallengeWant Even More Great Space Content? Check out the Exciting STELLAR Playlist https://www.youtube.com/playlist?list...Big Bang Supporters:Alexander TamasAnton LifshitsDavid NicklasFabrice EapJuan BenetMorgan HoughQuasar Supporters:Mark HeisingMark RosenthalVinnie FalcoHypernova Supporters:Chuck ZegarDanton SpiveyDonal BotkinEdmund FokschanerHank SJohn HofmannJohn R. SlavikJordan YoungJoseph SalomoneMatthewMatthew O'ConnorSyed AnsarGamma Ray Burst Supporters: Adrien HatchAdrian MolyneuxAlexey EromenkoAndreas NautschBradley JenkinsBrandon LabonteCarlo MogaveroDan WarrenDaniel LyonsDavid BehtalaDFaulkDustan JonesGeoffrey ShortJames FlowersJames QuinteroJohn FunaiJohn PollockJonahJonathan NesfederJoseph DillmanJosh ThomasKevin WarneKyle HoferMalte UblMark VasileNathan HitchingsNicholas NachefskiNick VirtuePaul RoseScott GossettSigurd Ruud FrivikTaras VozniukTim JonesTim StephaniYurii Konovaliukسلطان الخليفي Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
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