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by Cool Worlds
Space, astronomy, exoplanets, astroengineering and the search for extraterrestrial life & intelligence.The Cool Worlds Lab (http://coolworldslab.com), based at the Department of Astronomy, Columbia University, is a team of astronomers seeking to discover and understand alien worlds, particularly those where temperatures are cool enough for life, led by Professor David Kipping.Links:Subscribe!: https://www.youtube.com/channel/UCGHZpIpAWJQ-Jy_CeCdXhMA?sub_confirmation=1
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- Today27 min
The Star That Can't Exist
Visit our sponsor, Brilliant.org: https://brilliant.org/CoolWorldsThe cosmos is littered with blue and red stars... but curiously no green ones. Why? Is this a fundamental constraint or merely an unlikely outcome? And what would it mean for humanity if we ever did detect a green star? Join us today as we explore this simple question with major implications.Written & presented by Prof David Kipping→ Support our research program: https://www.coolworldslab.com/support→ Get Stash here! https://teespring.com/stores/cool-worlds-storeTHANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, M. Hammer, J. Swigo & A. Murphy.::Music::Music licensed via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/)► Brad Hill - Of Love and Loss [https://open.spotify.com/album/2oDAnUfX0OYYOnuIToAEcX]► Joachim Heinrich - Cassiopeia► Falls - Life in Binary► Chris Zabriskie - Cylinder Five► Falls - Ripley► Indive - Trace Correction::Film/TV clips used::► Contact (1997) - Warner Bros. Pictures► Avengers: Endgame (2019) - Walt Disney Studios Motion Pictures::Chapters::00:00 Prologue00:59 The Dearth of Green Stars05:25 Sponsorship06:28 The Blackbody Approximation10:51 Entering the Multiverse13:04 The Viridian Flash14:46 A Green Technosignature18:37 Concluding Remarks19:27 Outro and credits#NoGreenStars #Technosignatures #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today36 min
Are Alien "Lurkers" Watching You?
Visit our sponsor, Private Internet Access to get digital privacy for $2.08/month: https://www.privateinternetaccess.com/CoolWorldsThe search for alien intelligence is usually a framed as a search for life around other stars. But some have suggested that we should look within the Solar System instead - seeking so-called "Lurkers", alien probes sent here to monitor us. Today we explore this interesting idea, the motivations behind it and where we might actually try surveying.Written & presented by Prof David Kipping→ Support our research program: https://www.coolworldslab.com/support→ Get Stash here! https://teespring.com/stores/cool-worlds-storeTHANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, A. Cook, J. Martinez, K. Nardone, L. Feng, M. Rydqvist, P. Schnakenburg & A. Moore.::References::► Bohn et al. 2020, Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1, ApJL 898, 16: https://arxiv.org/abs/2007.10991► Benistry et al. 2021, A Circumplanetary Disk Around PDS70 c, ApJL 916, 2: https://arxiv.org/abs/2108.07123Pale Blue Dot NASA JPL/Caltech https://www.nasa.gov/feature/jpl/pale-blue-dot-revisited► Benford 2019, Looking for Lurkers: Co-orbiters as SETI Observables, AJ 150, 5: https://ui.adsabs.harvard.edu/abs/2019AJ....158..150B► Hippke 2020, Interstellar Communication Network. I. Overview and Assumptions, AJ 159, 10: https://arxiv.org/abs/1912.02616::Music::Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist► Brad Hill - Fragile [https://open.spotify.com/album/1QDRubBTOO50Kwb8MtRwjF]► Chris Zabriskie - Cylinder Four► Atlas - Waking Up► Falls - Life in Binary► Falls - Ripley► Joachim Heinrich - Cassiopeia► Brad Hill - A Slowly Lifting Fog [https://open.spotify.com/album/0i7df7bwsTHcJ7zRCHqq1G]► Chris Zabriskie - Cylinder Five► Chris Zabriskie - Cylinder Seven► Joachim Heinrich - Stratosphere► Indive - Trace Correction::Video clip credits:: (See bit.ly/3lnqk8j for links)► Licensed clips via Envato► PHL @ UPR Arecibo, ESO► ESA/Hubble, M. Kornmesser► ESA/NASA/JPL/University of Arizona► National Space Society/NASA► ESO/L. Calçada, ALMA (ESO/NAOJ/NRAO)/Benisty et al.► NASA’s Goddard Space Flight Center► P. Horálek/ESO► ESO► ESO / L. Calçada https://eventhorizontelescope.org/► Eameses► NASA/Goddard Space Flight Center, NOAA, Lockheed Martin► NASA► ESO, M. Kornmesser, L.Calcada► NASA/ESA/M.Kornmesser► NASA's Goddard Space Flight Center► NASA Jet Propulsion Laboratory► California Academy of Sciences► NASA’s Goddard Space Flight Center► NASA/Jet Propulsion Laboratory-Caltech► NASA/Goddard Space Flight Center► NASA/JPL/SwRI► ESA/Hubble, NASA, ESO, M. Kornmesser::Film/TV clips used::► The Straight Story (1999) Buena Vista Pictures Distribution► The Truman Show (1998) Paramount Pictures► Gravity (2013) Warner Bros. Pictures► Contact (1997) Warner Bros. Pictures► First Man (2018) Universal Pictures► Rogue One: A Star Wars Story (2016) Walt Disney Studios Motion Pictures► Interstellar (2014) Paramount Pictures► Star Trek: Voyager (Paramount Television)Thumbnail by pc8650 htt Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today30 min
Is the Solar System Special?
This video was sponsored by CuriosityStream - sign up for CuriosityStream at https://curiositystream.com/CoolWorlds to get a year's subscription for $14.99.Before we discovered any exoplanets, it was generally assumed the Solar System was just a typical planetary system. More and more though, we are finding that the Solar System might not be so ordinary afterall. Join us today as we explore the question - is the Solar System unusual?Written & presented by Prof David Kipping→ Support our research program: https://www.coolworldslab.com/support→ Get Stash here! https://teespring.com/stores/cool-worlds-storeTHANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, R. Sievers, D. Christensen, J. Davison, R. Brook & R. Hartwell.::References::► He et al. (2020), "Architectures of Exoplanetary Systems. II: An Increase in Inner Planetary System Occurrence Toward Later Spectral Types for Kepler's FGK Dwarfs", AJ 161, 24: https://arxiv.org/abs/2003.04348► Poleski et al. (2021), "Wide-orbit exoplanets are common. Analysis of nearly 20 years of OGLE microlensing survey data", Acta Astronautica 71, 1: https://arxiv.org/abs/2104.02079► Foreman-Mackey et al. (2014), "Exoplanet population inference and the abundance of Earth analogs from noisy, incomplete catalogs", ApJ 795, 12: https://arxiv.org/abs/1406.3020► Wittenmyer et al. (2016), "The Anglo-Australian Planet Search XXIV: The Frequency of Jupiter Analogs", ApJ 819, 28: https://arxiv.org/abs/1601.05465► Bryan et al. (2019), "An Excess of Jupiter Analogs in Super-Earth Systems", AJ 157, 18: https://arxiv.org/abs/1806.08799::Music::Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist► Joachim Heinrich - Stjarna► Falls - Ripley► Falls - Life in Binary► Chris Zabriskie - The Sun is Scheduled to Come Out Tomorrow► Joachim Heinrich - Cassiopeia► Painted Deserts - Shimmer► Chris Zabriskie - Cylinder Two► Joachim Heinrich - Stratosphere► Indive - Fusion::Chapters::00:00 Mediocrity07:54 Typical Systems11:27 Sponsorship12:54 Solar System Analogs20:00 Final Thoughts22:01 Outro and Credits#SolarSystem #AreWeUnusual #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today9 min
New Discoveries from Kepler
NASA's Kepler Mission is now into's eighth year of discovering new planets. This week, NASA held the fourth Kepler Science Conference at NASA Ames with important discoveries being announced there. Here's a rundown of a couple of the stories making the news and some insights into how these results fit into our emerging picture of exoplanets.::More about this Video::► NASA Press Release "Hundreds of New Planet Candidates": https://www.nasa.gov/press-release/nasa-releases-kepler-survey-catalog-with-hundreds-of-new-planet-candidates► Petigura et al. (2017), "The California-Kepler Survey. I. High Resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets": https://arxiv.org/abs/1703.10400► Johnson et al. (2017), "The California-Kepler Survey. II. Precise Physical Properties of 2025 Kepler Planets and Their Host Stars": https://arxiv.org/abs/1703.10402► Fulton et al. (2017), "The California-Kepler Survey. III. A Gap in the Radius Distribution of Small Planets": https://arxiv.org/abs/1703.10375► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu► Columbia University Department of Astronomy: http://www.astro.columbia.edu► Outro music by Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes::Playlists For Channel::Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorldsCool Worlds Research ► http://bit.ly/CoolWorldsResearchGuest Videos ► http://bit.ly/CoolWorldsGuestsQ&A Videos ► http://bit.ly/CoolWorldsQATabby's Star ► http://bit.ly/TabbysStarScience of TV/Film ► http://bit.ly/ScienceMovies::Follow us::SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribeCool Worlds Lab http://coolworlds.astro.columbia.eduTwitter https://twitter.com/david_kippingInstagram https://www.instagram.com/cool.worldsTHANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today31 min
The Problem With "The Rare Earth Hypothesis"
The Rare Earth Hypothesis suggests that our planet may the product of an incredibly improbable sequence of events, and thus perhaps intelligent life is extremely rare in the cosmos. Here we tackle this highly influential idea and the arguments behind it. But, digging deeper, we'll uncover some problems with the Rare Earth idea - some of which strike to the very core of our scientific quest.Written & presented by Prof David Kipping→ Support our research program: https://www.coolworldslab.com/support→ Get Stash here! https://teespring.com/stores/cool-worlds-storeTHANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, R. Sievers, G. Canterbury, J. Kill, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, T. Wheeler, E. Zahnle, N. Gebben, B. Weaver, C. Macdonald, M. Hedlund, P. Kaup, D. Osborn, D. Gustafson, M. Hedlund, N. Laugman, P. Kaup, T. Lindén, T. Brenard & I. Banks.::Music::Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist► Falls - Ripley► Hill - There Is but One Good [https://open.spotify.com/album/4pmiXcyRpPlFjWjb45pYLx]► Chris Zabriskie - Cylinder Two► Falls - Life In Binary► Hill - Bruised Hope [https://open.spotify.com/album/2oDAnUfX0OYYOnuIToAEcX]► Hill - Looking for the Profound [https://open.spotify.com/album/69IrML6Y4K3Wh1pZr3L4Jb]► Indive - Trace Correction#RareEarth #AreWeAlone #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today8 min
Documentary Shoot | Behind the Scenes
And now time for something completely different. This week I was interviewed for the science documentary show "How the Universe Works" and I decided to film some time lapses of the shooting and give you a little insight into this rather different way of communicating science to our regular style on Cool Worlds. I have no idea when this will air - probably many months away!::More about this Video::► Pioneer TV, "How the Universe Works": http://www.pioneertv.com/programmes/how-the-universe-works-5/► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu► Columbia University Department of Astronomy: http://www.astro.columbia.edu► Background music by David Cutter Music: https://dcuttermusic.bandcamp.com► Outro music by Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes::Playlists For Channel::Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorldsCool Worlds Research ► http://bit.ly/CoolWorldsResearchGuest Videos ► http://bit.ly/CoolWorldsGuestsQ&A Videos ► http://bit.ly/CoolWorldsQATabby's Star ► http://bit.ly/TabbysStarScience of TV/Film ► http://bit.ly/ScienceMovies::Follow us::SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribeCool Worlds Lab http://coolworlds.astro.columbia.eduTwitter https://twitter.com/david_kippingInstagram https://www.instagram.com/cool.worldsTHANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today21 min
A Theory for Tabby's Star (Without Aliens) | Metzger and Stone
You've probably heard about the recent news of the strange dimmings of Tabby's Star and the provoactive hypothesis of an alien megastructure (fi not check out http://bit.ly/TabbysStar). But could there be a natural explanation instead? Well two theoretical astrophycistss here at Columbia think so and here they briefly summarize some of the leading theories (although news ones are appearing almost every day!) and they think their own explanation is the best one so far.::More about this Video::► Metzger, Shen & Stone (2017), "Secular Dimming of KIC 8462852 Following its Consumption of a Planet": https://arxiv.org/abs/1612.07332► Montet & Simon (2016), "KIC 8462852 Faded Throughout the Kepler Mission": https://arxiv.org/abs/1608.01316► Schaefer (2016), "KIC 8462852 Faded at an Average Rate of 0.165+-0.013 Magnitudes Per Century From 1890 To 1989": https://arxiv.org/abs/1601.03256► Boyajian et al. (2016), "Planet Hunters X. KIC 8462852 - Where's the Flux?": https://arxiv.org/abs/1509.03622► Live Q&A on Cool Worlds with Tabby Boyajian: https://youtu.be/k_-6SEb2QlM► Cool Worlds video "What is an Alien Megastructure?" at https://youtu.be/tYHVCW3BkHU► Jason Wright's Cool Worlds video, "The Most Mysterious Star": https://youtu.be/jjh0oK7ZyfM► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu► Columbia University Department of Astronomy: http://www.astro.columbia.edu► Outro music by Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes::Playlists For Channel::Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorldsCool Worlds Research ► http://bit.ly/CoolWorldsResearchGuest Videos ► http://bit.ly/CoolWorldsGuestsQ&A Videos ► http://bit.ly/CoolWorldsQATabby's Star ► http://bit.ly/TabbysStarScience of TV/Film ► http://bit.ly/ScienceMovies::Follow us::SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribeCool Worlds Lab http://coolworlds.astro.columbia.eduTwitter https://twitter.com/david_kippingInstagram https://www.instagram.com/cool.worldsTHANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
- Today37 min
We Discovered a New Exomoon Candidate!!
Exciting new result from the Cool Worlds Lab! Several years ago we started an ambitious research program to survey the sample of transiting cool, giant planets for exomoons. Our search is the first of its kind and provides one particularly interesting result - a new exomoon candidate, Kepler-1708 b-i. Today we discuss how we found this object and what it means.Written & presented by Prof David Kipping→ Support our research program: https://www.coolworldslab.com/support→ Get Stash here! https://teespring.com/stores/cool-worlds-storeTHANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, R. Sievers, G. Canterbury, J. Kill, J. Cassese, J. Kruger & S. Way.::References::► Kipping, David et al. (2022), "An Exomoon Survey of 70 Cool Giant Exoplanets and the New Candidate Kepler-1708 b-i", Nature Astronomy: https://www.nature.com/articles/s41550-021-01539-1► Teachey, Alex and Kipping, David (2018), "Evidence for a large exomoon orbiting Kepler-1625b", Science Advances: https://www.science.org/doi/10.1126/sciadv.aav1784::Music::Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist► Indive - Ion ► Brad Hill - Looking for the Profound [https://open.spotify.com/album/69IrML6Y4K3Wh1pZr3L4Jb]► Chris Zabriskie - The Sun Is Scheduled To Come Out Tomorrow ► Falls - Life in Binary ► Brad Hill - Breathe [https://open.spotify.com/album/69IrML6Y4K3Wh1pZr3L4Jb?si=5L0v6iu7RT6pYVtc6bX0ng]► Brad Hill - Fragmented [https://open.spotify.com/album/1QDRubBTOO50Kwb8MtRwjF]► Brad Hill - There is but One Good [https://open.spotify.com/album/4pmiXcyRpPlFjWjb45pYLx]► Brad Hill - The Mysterious [https://open.spotify.com/album/69IrML6Y4K3Wh1pZr3L4Jb]► Indive - Trace Correction ::Film/TV clips used::► Avatar (2009) 20th Century Fox► Ad Astra (2019) 20th Century Fox► Sunshine (2007) Fox Searchlight Pictures► Avengers: Endgame (2019) Walt Disney Studios Motion Pictures► Prisoners (2013) Warner Bros. Pictures► Men in Black (1997) Sony Pictures Releasing► Agora (2009) Fox International Pictures► Prometheus (2012) 20th Century Fox► The Imitation Game (2014) The Weinstein Company► The Aviator (2004) Warner Bros. Pictures► Prospect (2018) Gunpowder & Sky::Chapters::00:00 Teaser00:25 Exomoon Hunting09:01 Cool Giants Survey17:23 KIC-790682724:05 Kepler-170828:39 Outro and credits#Exomoons #Kepler1708 #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
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About Cool Worlds
Space, astronomy, exoplanets, astroengineering and the search for extraterrestrial life & intelligence.The Cool Worlds Lab (http://coolworldslab.com), based at the Department of Astronomy, Columbia University, is a team of astronomers seeking to discover and understand alien worlds, particularly those where temperatures are cool enough for life, led by Professor David Kipping.Links:Subscribe!: https://www.youtube.com/channel/UCGHZpIpAWJQ-Jy_CeCdXhMA?sub_confirmation=1
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