Science Cosmology

Trous noirs, exoplanètes, les nouvelles techniques d'observation en astronomie ont permis d'extraordinaires découvertes. Une résolution beaucoup plus fine des images. Durant les dernières décennies, de nouveaux instruments d'observation situés sur Terre et dans l'espace ont, grâce à des progrès dans la résolution des images, donné lieu à des découvertes extraordinaires. Trous noirs et exoplanètes : des découvertes extraordinaires. Pierre Léna décrit ici ces innovations instrumentales et s'attarde sur deux découvertes majeures récentes.

Em 2016 Stephen Hawking participou da série de palestras BBC Reith Lectures, promovida pela rede de televisão britânica BBC e transmitida pela rádio BBC 4. A cada ano uma figura proeminente em sua área é convidada a discorrer sobre temas relevantes. Naqueles meses de janeiro e fevereiro, Hawking falou sobre um assunto que há décadas ocupa lugar de destaque em suas pesquisas: os buracos negros.

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.

14 Milliarden Jahre in 2 Stunden und 24 Minuten - Kurz und knackig: Das Wichtigste über das Universum - für Leute, die wenig Zeit haben. Die junge Oxforder Astrophysikerin Becky Smethurst führt in zehn kurzen Kapiteln zügig durchs Weltall. Was existierte vor dem Big Bang, gibt es da draußen noch andere Lebewesen, was ist das Geheimnis Dunkler Materie und Schwarzer Löcher? Für alle, die große Fragen ans Universum haben, und diese gerne sowohl wissenschaftlich als auch humorvoll beantwortet hätten. Becky Smethursts Begeisterung für Astrophysik ist mitreißend.

Shaun Usher brings together fascinating correspondence about the universe beyond our planet, containing hopeful thoughts about the future of space travel, awestruck messages penned about the worlds beyond our own and celebrations of the human ingenuity that has facilitated our understanding of the cosmos.

A new myth for a new age! Enjoy the origins of the universe from a new perspective, combining aspects of Christian, Norse, Egyptian, and Greek cosmology. Primordium is Latin for the first beginning and used in biology to mean the earliest developmental stage for an organic substructure. These same Latin roots are combined to describe the theoretical swamp where life first began, the primordial soup.

In this volume the author of Contemporary Macrobiotics makes the case for a peaceful universe. Using traditional Eastern cosmology, he reviews and critiques mainstream concepts like the big bang and thermonuclear sun, while offering a fresh vision of the cosmos.

Are UFO pilots really aliens? Download now and find out today!