Showing titles in Cosmology

"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...

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.

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.

How did our universe begin, and when and how will it end? Is the universe infinitely expanding, as the theory of cosmic inflation insists? If alien life exists, what are the chances of our encountering it, and what would such an encounter mean for humanity? Now, you can sit in on conversations with the world’s leading cosmology experts as they answer these and many other fascinating questions.

“Cosmos” comes from a Greek word for an orderly and systematic universe. In this book, we present the most riveting discoveries and mind-bending ideas about our cosmic home, from what we know of the origins of the universe and the cartography of space to the most bizarre phenomena and the search for life. Discussions include the possibility that the big bang was the consequence of a black hole in a fourth spatial dimension, that cosmic ripples created infinite universes, that entangled black holes could act as wormhole-like passageways through space, and much more.

Qui de mieux que Nathalie A. Cabrol pour faire le point dans un essai vivant et didactique sur l’une des questions les plus profondes de l’humanité : sommes-nous seuls dans l’Univers ? La directrice scientifique du centre SETI (Search for Extraterrestrial Intelligence, " Recherche d’intelligence extraterrestre ") aborde tour à tour l’exploration de notre système solaire, la recherche des exoplanètes, celle des signaux extraterrestres et les types de civilisations ou vies qu’on espère y trouver.

Set in a revolutionary era of physics and science when a series of rapid-fire discoveries was upending our understanding of the universe, Splinters of Infinity by Mark Wolverton tells a little-known story: the tale of two of America's foremost physicists, Robert Millikan (1868-1953) and Arthur Compton (1892-1962), who found themselves locked in an intense, often deeply personal, conflict about cosmic rays. 

This book offers a rigorous and deliberately restrained examination of one of the most ambitious ideas in contemporary theoretical physics: the holographic principle. Rather than celebrating or rejecting holography, it subjects its claims to disciplined evaluation, asking not whether the mathematics works, but what, if anything, it entitles us to say about reality itself. The analysis proceeds from a simple but often neglected distinction between three levels of theoretical success: mathematical consistency, explanatory power, and ontological entitlement.

NEW YORK TIMES BESTSELLER Deepak Chopra joins forces with leading physicist Menas Kafatos to explore some of the most important and baffling questions about our place in the world. "A riveting and absolutely fascinating adventure that will blow your mind wide open!" —Dr. Rudolph E...

"The Accelerating Universe is not only an informative book about modern cosmology. It is rich storytelling and, above all, a celebration of the human mind in its quest for beauty in all things." (Alan Lightman, author of Einstein's Dreams)

A unique blend of literary experimentation and science popularization, this delightful book is a perfect gift for any aspiring astronomer. The Edge of the Sky tells the story of the universe on a human scale, and the result is out of this world.

What if reality is not a branching forest of infinite timelines, but a single, irreplaceable world whose value becomes clearer the moment we strip away seductive myths? This book confronts one of the most persistent modern fantasies—the idea of parallel universes—by examining it through science, philosophy, and the psychology of human perception. It exposes how easily speculative models slip into pseudoscience, how cultural repetition creates the illusion of credibility, and how misused scientific language blurs the boundary between rigorous inquiry and imaginative fiction.

Renegade space pioneer Rick Tumlinson spent decades leading the Space Revolution, ushering in the rocketships that will open the Universe to humanity. Now, he's here to share why space isn't just for astronauts, billionaires, or scientists. It's for you. This book takes you on an extraordinary journey through history, science, philosophy, and moving personal experience to reveal a profound truth. Opening space isn't just about technology or exploration.

How Big Is the Universe? is a poetic journey through space, time, and consciousness. Using Earthly metaphors—a tennis ball for the observable universe and Pluto for the actual one—it translates cosmic immensity into human scale. The book traces humanity’s expanding awareness: from believing Earth was the center to discovering trillions of galaxies held together by unseen forces of dark matter and dark energy. It explores the search for life, the fine-tuning of physical laws, and the idea that consciousness may be the universe knowing itself.

The Magellanic Clouds drift across the southern sky like luminous islands—near enough to be seen with the naked eye, yet vast enough to hold billions of stars. For millennia they have been woven into the stories of Indigenous peoples, guiding navigators across oceans and inspiring myths of creation. For modern science, they are living laboratories, revealing how galaxies are born, shaped, and ultimately transformed.

What begins as a faint smudge in the night sky becomes, through science, imagination, and reflection, a vast spiral galaxy with billions of stars and a future intimately entwined with our own. Andromeda: Meeting Our Galactic Neighbor is a sweeping exploration of M31—not only as an astronomical object, but as a mirror to human curiosity, time, and destiny. From its mythic naming in ancient lore to its place in cutting-edge cosmology, this book traces how Andromeda has shaped and reshaped our understanding of the universe.

This book traces antimatter from its theoretical origins to its roles in cosmic evolution, laboratory precision, and emerging technology. It follows its perfect symmetry with matter, its fleeting appearances in stellar cores, cosmic rays, and particle accelerators, and its central place in the laws of conservation that govern change. The narrative moves through the early universe, where matter’s survival hinged on an infinitesimal asymmetry, and into present-day experiments testing antimatter’s spectra, magnetic properties, and response to gravity.