検索キーワード： 宇宙論

"Hace muchos años -1976- estuve en Tucson, Arizona, y en el planetario de la ciudad había un ciclo de charlas de divulgación. Una de ellas me llamó poderosamente la atención. La ofrecía el astrónomo de la Universidad de Arizona, Nick Woolf, y se titulaba "The Universe: I can Feel it in my Bones". El título era tan provocativo que me inspiró para una charla pública que, ya de vuelta en Chile, he dictado durante años: "Somos polvo de estrellas". A miles de jóvenes y no tan jóvenes les he contado lo que yo considero una de las más grandes historias de la astronomía.

Het laatste boek van professor Stephen Hawking. Hoe is alles begonnen? Is er intelligent leven elders in het heelal? Kunnen we de toekomst voorspellen? Bestaat er een God? Wat zit er in een zwart gat? Zijn tijdreizen mogelijk? Zullen we overleven op aarde? Moeten we de ruimte koloniseren? Zal kunstmatige intelligentie slimmer worden dan wij? Hoe geven wij de toekomst vorm? De wereldberoemde wetenschapper en bestsellerauteur Stephen Hawking laat ons zijn laatste ideeën over de grootste vragen van het universum na in dit briljante postuum uitgegeven werk.

Teletransporte, máquinas del tiempo, campos de fuerza y naves intergalácticas: ¿materia de ciencia ficción o tecnologías potencialmente disponibles en el futuro? Inspirado por los mundos fantásticos de H.G. Wells, Star Trek o La guerra de las galaxias, el prestigioso físico teórico y divulgador Michio Kaku lanza una mirada inteligente, seria y a menudo sorprendente a lo que nuestra actual comprensión de las leyes del universo nos permite vislumbrar en el futuro.

>Bodo Zeidler setzt für solche Gedankengänge die Romanfigur "Matthew Widget" in Szene, einen skurrilen Menschen, der im Taumel der Liebe zu besonderen Erkenntnissen gelangt, die entweder unter ferner liefen abzustempeln sind, oder doch die Gelehrten zu neuer Inspiration verleiten mögen. In seinem Hörbuch "Das kleinste Teilchen ist ein Universum", beschaut sich der Autor Bodo Zeidler Weltbilder "Raum und Zeit" und lässt die Romanfigur durch eine gefühlvolle Story laufen, in der viele Fragen beantwortet, oder auch als entscheidende Fragen formuliert werden.

Un cibo non troppo caldo e non troppo freddo, un letto non troppo morbido e non troppo duro: ecco cosa vuole la giovane protagonista della fiaba "Riccioli d'oro e i tre orsi", qualcosa di "proprio giusto". Sembra bizzarro, eppure l'astrobiologia usa lo stesso criterio nella ricerca di possibili forme di vita nello spazio. Tanto che si chiama "Fascia Riccioli d'oro" la zona abitabile di un sistema stellare, lo spazio in cui si trovano i pianeti che possiedono le caratteristiche necessarie allo sviluppo della vita: presenza di acqua, temperature non eccessivamente calde o fredde.

L'universo racchiude numerosi segreti e potrebbe perfino nascondere dimensioni inimmaginabili: universi paralleli, geometrie curve e inghiottitoi tridimensionali sono alcuni degli straordinari concetti che di recente sono divenuti protagonisti della ricerca scientifica. Oggi, delle leggi del cosmo capiamo molto più di qualche anno fa, eppure abbiamo molte meno certezze sulla sua vera natura. Nel suo percorso di ricerca nel campo della cosmologia e della fisica, Lisa Randall ha dovuto abbattere alcuni paletti della scienza ufficiale.

Quanti anni ha la vita? Qual è il destino delle stelle? Se l'atomo è fatto di vuoto, che cosa sostiene il mondo? Perché solo i nostri neuroni, tra quelli di tutte le specie, sono in grado di descrivere i neutrini? Edoardo Boncinelli e Antonio Ereditato ci raccontano l'avventura dell'Universo: dall'esplosione iniziale al costituirsi dell'architettura delle galassie, dal principio dello spaziotempo all'evoluzione dei sapiens e al sorgere della coscienza umana. Tornano a istanti che vanno da 10-30 a 10-20 secondi dopo il Big Bang.

Quanto è grande l'universo? C'è stato un inizio e ci sarà una fine? Come si è fatta strada l'ipotesi del Big Bang? Come si fa a scoprire il passato dell'universo e a prevederne l'evoluzione futura? Domande antiche e in parte ancora irrisolte. Nel volume i passi più importanti del lungo cammino scientifico dall'età moderna fino alle scoperte più recenti, riguardanti la gerarchia di strutture cosmiche, l'espansione dell'universo, lo stato iniziale ultracaldo e ultradenso, che oggi i cosmologi possono osservare direttamente grazie a sofisticati telescopi e strumenti spaziali.

Quando e dove è iniziata la vita? E a cosa somigliavano le prime forme di vita? Interrogativi che l'uomo si pone da sempre, per i quali, pur in mancanza di risposte definitive, si possono avanzare alcune ipotesi. Come quella che colloca l'origine della vita intorno a 3,8 miliardi di anni fa, in un contesto riconducibile a uno di questi ambienti: brodo primordiale, campi geotermali, siti di impatto meteoritico. Certo è che le tessere del più grande e affascinante dei puzzle restano RNA, amminoacidi, protogeni, protocellule.

Keine Kultur kann existieren ohne eine Erzählung von den Ursprüngen. Der italienische Teilchenphysiker und Bestsellerautor Guido Tonelli erzählt in "Genesis" die große Geschichte von der Entstehung unseres Universums, angefangen vom Big Bang und den allerersten Augenblicken danach bis zu unserem Sonnensystem. Sein Buch ist der meisterhafte Versuch, aus dem Wissen der heutigen Astrophysik heraus eine Erzählung von den Ursprüngen zu entwickeln, die nie die Grenzen der Wissenschaft verlässt, sich aber an den großen Mythen messen lassen kann.

The galaxy, the multiverse, and the history of astronomy are explored in this engaging compilation of cosmological "tales" by multiple award-winning science writer Marcia Bartusiak. In 32 concise and engrossing essays, the author provides a deeper understanding of the nature of the universe and those who strive to uncover its mysteries. Bartusiak shares the back stories for many momentous astronomical discoveries, including the contributions of such pioneers as Beatrice Tinsley and her groundbreaking research in galactic evolution.

Scientists in the past few decades have made crucial discoveries about how our cosmos evolved over the past 13.8 billion years. But there remains a critical gap in our knowledge: We still know very little about what happened in the first seconds after the Big Bang. At the Edge of Time focuses on what we have recently learned and are still striving to understand about this most essential and mysterious period of time at the beginning of cosmic history. 

In Signposts to God, particle physicist Peter Bussey introduces listeners to the mysteries of modern physics and astronomy. Authored in clear, accessible prose, Bussey provides a primer on topics such as the laws of nature, quantum physics, fine-tuning, and current cosmological models. Bussey argues that, far from ruling out a divine creator, modern physics and astronomy present us with compelling signposts to God. The more we know about the cosmos and our presence in it, the more plausible belief in God becomes.

This book is for anyone who wants to easily understand the mind-blowing fundamentals of our extraordinary, expanding universe. Written by Oxford astrophysicist Dr Becky Smethurst and composed of ten captivating, simple essays, it guides you swiftly through the galaxies, explaining the mysteries...

A NEW YORK TIMES NOTABLE BOOK * AN NPR SCIENCE FRIDAY BOOK CLUB SELECTION * NAMED A BEST BOOK OF THE YEAR BY THE WASHINGTON POST, THE ECONOMIST, NEW SCIENTIST, PUBLISHERS WEEKLY, and THE GUARDIAN From the cohost of the podcast The Universe with John Green and one of the most dynamic stars in...

Four more series of Brian Cox and Robin Ince’s multi award-winning science/comedy show - including the 100th episode and 'The Infinite Moonkey Cage', a special hour-long episode celebrating the 50th Anniversary of the Apollo moon landings. One of BBC Radio 4’s most popular programmes, The Infinite Monkey Cage sees Physicists Robin Ince and Brian Cox taking a witty, irreverent look at the world through Scientists’ eyes.

Our scientists might be armed with giant telescopes and powerful particle accelerators, yet their goal is the same one that has impelled the human imagination since ancient times: to show us our place in the universe. The result of their collective efforts is a complex story. At times it stretches the imagination just as much as the old creation myths. But its building blocks give us the power to work marvels our predecessors could scarcely comprehend. In Genesis, Guido Tonelli sets out 'to do justice to the great origin story that modern science gives us'.

When Stephen Hawking died, he was widely recognized as the world's best physicist, and even its smartest person. He was neither. In Hawking Hawking, science journalist Charles Seife explores how Stephen Hawking came to be thought of as humanity's greatest genius. Hawking spent his career grappling with deep questions in physics, but his renown didn't rest on his science. He was a master of self-promotion, hosting parties for time travelers, declaring victory over problems he had not solved, and wooing billionaires.

With the ongoing advancement of AI and other technologies, our world is becoming increasingly intelligent. From chatbots to innovations in brain-computer interfaces to the possibility of superintelligences leading to the Singularity later this century, our reality is being transformed before our eyes. This is commonly seen as the natural result of progress, but what if there's more to it than that? What if intelligence is an inevitability, an underlying property of the universe?

Eclipses: What Everyone Needs to Know helps explain the profound differences between a 99.99 percent partial eclipse and true totality, and inform listeners how to experience this most beautiful natural phenomenon successfully. It covers eclipses of sun, moon, and other astronomical objects, and their applications in science, as well as their role in history, literature, and myth. It describes the phenomena to expect at a solar eclipse and the best ways to record them - by camera, video, or by simple handmade experiments.