Prázdnota (astronomie)

Blízké okolí Mléčné dráhy s Místní superkupou galaxií v Panně, jsou vidět prázdnoty mezi filamenty

Pojmem prázdnota (anglicky „void“, pl. „voids“) se v astronomii a v astrofyzice označují obrovské prázdné prostory mezi velkými strukturami ve vesmíru.

Rozdělení hmoty ve vesmíru má dle astronomických pozorování a simulací v největších vzdálenostech charakter pláství či buněk, které jsou tvořené filamenty (vlákny galaxií) a mezi nimi ležící prázdnotou.

Dosud pozorované prázdnoty mají průměr okolo 100 miliónů světelných let. Největší prázdnota byla objevena v roce 2007 v souhvězdí Eridanu. Má průměr 500 milionů světelných let a tisícinásobný objem oproti ostatním prázdnotám.

Simulace ukazují, že mohou obsahovat více hmoty než se dříve předpokládalo.[1] Astronomové přišli i s teorií, že Země (a celá galaxie Mléčná dráha) se nachází v prázdnotě o průměru 2 miliardy světelných let.[2][3]

Reference

  1. ↑ MIHULKA, Stanislav. Supermasivní černé díry pumpují hmotu do vesmírných prázdnot. osel.cz [online]. 2016-02-26 [cit. 2022-12-12]. Dostupné online. 
  2. ↑ University of Wisconsin-Madison. Celestial boondocks: Study supports the idea we live in a void. phys.org [online]. 2017-06-06 [cit. 2022-12-12]. Dostupné online. (anglicky) 
  3. ↑ HOSCHEIT, Benjamin L.; BARGER, Amy J. Large Local Void, Supernovae Type Ia, and the Kinematic Sunyaev-Zel'dovich Effect in a Lambda-LTB Model. In: [s.l.]: [s.n.], 2017-06-01. Dostupné online. Svazek 230. S. #314.05.

Externí odkazy

Read other articles:

The Reporter (film)

2015 Indian Malayalam film The ReporterTheatrical release posterDirected byVenugopanWritten byS. Suresh BabuProduced byK. R. BaburajRaju PanayamkulamStarringKailashSamuthirakaniAnanyaAbhinayaCinematographyAlagappan NEdited bySujoy JosephMusic bySharrethProductioncompanySarayu MoviesRelease date 6 March 2015 (2015-03-06) CountryIndiaLanguageMalayalam The Reporter is an Indian Malayalam mystery thriller-romance film directed by Venugopan. The film stars Kailash, Samuthirakani, ...

 

Tata Vista

Tata IndicaTata Indica 2014InformasiProdusenTata MotorsMasa produksi1998–2015PerakitanPune, Maharashtra, IndiaBodi & rangkaKelasSuperminiTata letakMesin depan, penggerak roda depan Tata Vista (di India dijual dengan nama Indica) adalah mobil kota yang diluncurkan oleh produsen mobil India Tata Motors pada tahun 1998. Mobil ini adalah mobil penumpang pertama Tata Motors dan juga dianggap sebagai mobil penumpang pertama yang dikembangkan di India. Hingga Agustus 2008[update],...

 

Kitab Henokh

Untuk tulisan lainnya yang dikaitkan dengan Henokh, lihat Kitab Henokh (disambiguasi). Bagian dari Alkitab KristenPerjanjian LamaYosua 1:1 pada Kodeks Aleppo Taurat Kejadian Keluaran Imamat Bilangan Ulangan Sejarah Yosua Hakim-hakim Rut 1 Samuel 2 Samuel 1 Raja-raja 2 Raja-raja 1 Tawarikh 2 Tawarikh Ezra Nehemia Ester Puisi Ayub Mazmur Amsal Pengkhotbah Kidung Agung Kenabian Besar Yesaya Yeremia Ratapan Yehezkiel Daniel Kecil Hosea Yoël Amos Obaja Yunus Mikha Nahum Habakuk Zefanya Hagai Zakh...

The Great Mom Swap

1995 film by Jonathan Prince This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: The Great Mom Swap – news · newspapers · books · scholar · JSTOR (December 2023) The Great Mom SwapGenreComedyWritten byMaryedith BurrellDirected byJonathan PrinceStarringShelley FabaresValerie HarperMary Kate SchellhardtH...

 

Человек прямоходящий

† Человек прямоходящий Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:ЧелюстноротыеНадкласс:ЧетвероногиеКлада:АмниотыКлада:Синапсиды�...

 

趙家驤

追晉陸軍二級上將趙家驤將軍个人资料出生1910年 大清河南省衛輝府汲縣逝世1958年8月23日(1958歲—08—23)（47—48歲） † 中華民國福建省金門縣国籍 中華民國政党 中國國民黨获奖 青天白日勳章（追贈）军事背景效忠 中華民國服役 國民革命軍 中華民國陸軍服役时间1924年－1958年军衔 二級上將 （追晉）部队四十七師指挥東北剿匪總司令部參謀長陸軍�...

Sergei Shoigu

Russian politician (born 1955) Shoigu redirects here. For other uses, see Shoigu (name). In this name that follows Eastern Slavic naming customs, the patronymic is Kuzhugetovich and the family name is Shoigu. This article's lead section may be too short to adequately summarize the key points. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. (November 2023) Hero of the Russian FederationGeneral of the ArmySergei ShoiguСерге�...

 

France au Concours Eurovision de la chanson 1992

Cet article est une ébauche concernant la France et le Concours Eurovision de la chanson. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Franceau Concours Eurovision 1992 Données clés Pays  France Chanson Monté la riviè Interprète Kali Langue Créole martiniquais, français Sélection nationale Radiodiffuseur Antenne 2 Type de sélection Sélection interne Concours Eurovision de la chanson 1992 Posit...

 

Theodore Roosevelt Presidential Library

Presidential library and museum This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) A major contributor to this article appears to have a close connection with its subject. It may require cleanup to comply with Wikipedia's content policies, particularly neutral point of view. Please discuss further on the talk page. (February 2022) (Learn how and when to remove this message) This article's to...

Rugby Africa Cup

Two-year men's rugby union tournament For the football tournament, see Africa Cup of Nations. Rugby Africa CupCurrent season or competition: 2021–22 Rugby Africa CupSportRugby unionInstituted2000Governing bodyAfrica (Rugby Africa)Holders Namibia (2022)Most titles Namibia (9 titles) The Rugby Africa Cup is a two-year men's rugby union tournament involving the top 16 African nations based on their World Rugby rankings, it is organised by Rugby Africa. The tournament was first held i...

 

赛夫丁阿都拉

尊敬的拿督赛夫丁阿都拉Saifuddin bin Abdullah国会议员馬來西亞国会下议院英迪拉马哥打现任就任日期2018年7月16日 (2018-07-16)前任法兹阿都拉曼（希盟公正党）多数票10,950（2018） 马来西亚外交部长任期2021年8月30日—2022年11月24日君主最高元首苏丹阿都拉首相依斯迈沙比里副职卡玛鲁丁查化（国盟土团党）前任希山慕丁（国阵巫统）继任赞比里（国阵巫统）任期2018年7月2�...

 

Ascanidi

Disambiguazione – Se stai cercando l'omonima stirpe nobile tedesca che governò la contea di Weimar-Orlamünde nell'attuale Turingia a partire dal XII secolo, vedi Ascanidi (linea di Weimar-Orlamünde). Disambiguazione – Ascani rimanda qui. Se stai cercando altri significati, vedi Ascani (disambigua). Questa voce o sezione sull'argomento storia di famiglia non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da ...

Teologi tubuh Katolik

Halaman ini berisi artikel tentang teologi Katolik secara umum perihal tubuh manusia. Untuk pengajaran teologis dari Paus Yohanes Paulus Agung mengenai tubuh manusia, lihat Teologi Tubuh. Bagian dari seri tentangGereja KatolikBasilika Santo Petrus, Kota Vatikan Ikhtisar Paus (Fransiskus) Hierarki Sejarah (Lini Masa) Teologi Liturgi Sakramen Maria Latar Belakang Yesus Penyaliban Kebangkitan Kenaikan Gereja Perdana Petrus Paulus Bapa-Bapa Gereja Sejarah Gereja Katolik Sejarah Lembaga Kepausan K...

 

254th Combat Communications Group

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: 254th Combat Communications Group – news · newspapers · books · scholar · JSTOR (December 2012) (Learn how and when to remove this message) 254th Combat Communications Group254th Combat Communications Group emblemActive1952 – presentCountryUnited StatesBranch...

 

Benjamin Constant

Swiss-French politician and writer (1767–1830) This article is about the European writer and politician. For other people and places, see Benjamin Constant (disambiguation). Benjamin ConstantPortrait by Hercule de Roche, c. 1820Member of the Chamber of DeputiesIn office14 April 1819 – 8 December 1830ConstituencySarthe (1819–24)Seine 4th (1824–27)Bas-Rhin 1st (1827–30)Member of the Council of StateIn office20 April 1815 – 8 July 1815Appointed byNapoleon IMember of...

Pengkhotbah

Artikel ini bukan mengenai Kitab Pengkhotbah. Sebuah fresko yang menampilkan Santo Dominikus sedang berkhotbah, Taggia, Italia. Pengkhotbah atau Pengkotbah adalah orang yang menyampaikan khotbah atau homili perihal topik-topik agama kepada sekelompok orang. Pengkotbah terkadang berceramah di jalan-jalan raya, atau menyebarkan pesan yang tak berunsur keagamaan, tetapi mengkotbahi hal-hal seperti pandangan dunia atau filsafat moral atau sosial. Referensi Francis, Keith A., Gibson, William, et a...

 

Historia de las armas nucleares

Este artículo o sección necesita referencias que aparezcan en una publicación acreditada. Busca fuentes: «Historia de las armas nucleares» – noticias · libros · académico · imágenesEste aviso fue puesto el 19 de abril de 2017. Las armas nucleares son dispositivos que poseen un enorme potencial destructivo, que utilizan la energía derivada de la fisión nuclear o la fusión nuclear. Tuvieron su origen en los avances científicos de la década de 1933, que hicie...

 

Ōei Invasion

1419 Joseon invasion of Tsushima This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Ōei Invasion – news · newspapers · books · scholar · JSTOR (February 2023) (Learn how and when to remove this message) Ōei InvasionDateJune 20, 1419 – July 3, 1419(1 week and 6 days)LocationTsushima Island, JapanRe...

Patrick McLane

American politician from Pennsylvania Not to be confused with Patrick McLain. Patrick McLane, US Representative from PennsylvaniaThis article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Patrick McLane – news · newspapers · books · scholar · JSTOR (November 2022) (Learn how and when to remove this message) Patrick McL...

 

نادي بيسكارا

بيسكارا الاسم الكامل نادي ديلفينو بيسكارا 1936 اللقب I Delfini (الدلافين)I Biancazzurri (الأبيض والأزرق) الألوان   الأبيض   الأزرق الفاتح تأسس عام 1936 (منذ 88 سنة) الملعب ملعب الأدرياتيكو، بيسكارا(السعة: 20,515) البلد  إيطاليا الدوري الدوري الإيطالي الدرجة الثانية 2019–20 السابع ع�...