Galakser og stjerner

Winds form an integral part of astronomy ¿ from regulating rotation of stars through enriching galaxies with fresh materials. Outflowing winds persist during the entire lives of stars and play a key role in shaping the exoplanet demographics we observe. In massive stars, their winds are a vital ingredient of their evolution, from the main sequence to the pre-supernova stage, determining black hole masses as measured from gravitational waves. In the case of low-mass stars, their winds dictate rotational evolution, which affect angular momentum distribution within the stellar interior and thus the generation of magnetic fields. In the case of planets, winds take the form of atmospheric escape, which can strongly affect their atmospheric evolution. IAU Symposium 370 brings together researchers on winds of exoplanets and stars, including the solar wind, to share insights into the physics and modelling tools used by these different communities.

Addressing the need for a better understanding of astronomical phenomena while dispelling all redundant conclusions Introducing a novel concept on proposed logic, author Bruce Nye examines the clear logical facets that comprise planetary and cosmological dynamics while deconstructing the accepted notions on reality. His detailed analysis and unique methodology produce a mathematical language that is simple and will widen our perception of the world around us. Unveiling a tri-unity concept of connection and understanding comprised of general planetary spacing, a new method of habitable planetary numeric identification, and general explanations of gravitation, Nye expresses his dissent to relieve us of our obvious distortions of observance, and with his carefully drawn conclusions, he offers us an entirely new view of relation.

This book, the world's first complete (and stereoscopic) atlas of an asteroid, is the result of a unique collaboration between OSIRIS-REx mission leader Dante Lauretta and Brian May's London Stereoscopic Company. Lauretta's colleagues include Carina Bennett, Kenneth Coles, and Cat Wolner, as well as Brian May and Claudia Manzoni, who became part of the ultimately successful effort to find a safe landing site for sampling. The text details the data collected by the mission so far, and the stereo images have been meticulously created by Manzoni and May from original images collected by the OSIRIS-REx cameras.

Following on from the hugely popular Treasury of Folklore: Seas and Rivers and Woodlands and Forests comes Treasury of Folklore: Stars and Skies, an exploration of the mysteries of the stars, skies and heavens above.People have gazed up at the same stars for millennia, trading stories about them; conjuring gods and goddesses; mapping the constellations; and navigating the complex human world below. The tales, traditions and myths included here traverse countries and continents and have been chosen to highlight how humans are linked through time and place, with shared dreams, fears and ways of rationalising the unknown.Under 'Stars and Heavens' Willow delves into rosy fingered dawn and the hubris of Icarus, the Greek myths surrounding the constellations and the omen of meteors, the trials of the Hawaiian goddess Hina and the legend of the rabbit in the moon. In the section on 'Skies' we are introduced to winged Pegasus and the trials of the Firebird, the Witch of Westray and stories of storms, the mysteries of the Northern Lights and unexplained UFOs. Treasury of Folklore: Stars and Skies is a fascinating portal into a rich history of myths surrounding the sky, an aspect of the natural world that continues to fascinate and confound.

Videnskabs-detektiven Sherlock Ohms udforsker universets hemmeligheder. Han fortæller om fysikkens love og al den viden forskere har samlet gennem tiden.Denne meget oplysende bog er fyldt med FANTASTISKE FAKTA om de skjulte love, der styrer universet. Sjove TEGNESERIER viser FYSIKKENS lange og livlige historie. Desuden spændende og nemme FORSØG, du selv kan lave.Bagest i bogen findes en ordliste og et stikordsregister.Fagbog for børn ml. 7-11 år.Underholdende og indbydende bog om naturvidenskab og fysikkens love. De mange faktabokse og tegneseriestriber gør læsningen sjov og formidler det svære indhold på en spændende måde.LektørudtalelsenBøger i samme serie:Grundstofferne omkring digLivet omkring digVerden omkring dig

Much has been said and written about the value of space exploration from a worldview that is primarily Western, Caucasian, male, and politically libertarian. Reclaiming Space aims to incubate, illuminate, and illustrate a more diverse and inclusive conversation about space travel. Featuring twenty-seven essays written by a diverse array of contributors, Reclaiming Space offers perspectives on subjects such as spaceflight's history; the links between science fiction, space art and imagery, and space policy; and spaceflight as a tool for social progress.

Discover 15 stars, planets and constellations, and learn how to spot them in the night sky.

Scientific Study from the year 2020 in the subject Physics - Astronomy, grade: -, , language: English, abstract: In the present work, the gravitational discrepancies observed in disk galaxies are explained using a new relativistic theory beyond the standard model of physics. It assumes the existence of bosonic quasi-particles of a scalar field, which reach different relativistic velocities v

By the star physicist and author of multiple #1 Sunday Times bestsellers, a major and definitive narrative work on black holes and how they can help us understand the universe. At the heart of our galaxy lies a monster so deadly it can bend space, throwing vast jets of radiation millions of light years out into the cosmos. Its kind were the very first inhabitants of the universe, the black holes.Today, across the universe, at the heart of every galaxy, and dotted throughout, mature black holes are creating chaos. And in a quiet part of the universe, the Swift satellite has picked up evidence of a gruesome death caused by one of these dark powers. High energy X-ray flares shooting out from deep within the Draco constellation are thought to be the dying cries of a white dwarf star being ripped apart by the intense tides of a supermassive black hole ? heating it to millions of degrees as it is shredded at the event horizon.They have the power to wipe out any of the universe's other inhabitants, but no one has ever seen a black hole itself die. But 1.8 billion light years away, the LIGO instruments have recently detected something that could be the closest a black hole gets to death. Gravitational waves given off as two enormous black holes merge together. And now scientists think that these gravitational waves could be evidence of two black holes connecting to form a wormhole ? a link through space and time. It seems outlandish, but today's physicists are daring to think the unthinkable ? that black holes could connect us to another universe.At their very heart, black holes are also where Einstein's Theory of General Relativity is stretched in almost unimaginable ways, revealing black holes as the key to our understanding of the fundamentals of our universe and perhaps all other universes.Join Professors Brian Cox and Jeff Forshaw in exploring our universe's most mysterious inhabitants, how they are formed, why they are essential components of every galaxy, including our own, and what secrets they still hold, waiting to be discovered.

Sidste bind i den spændende og lyriske serie, der hylder børns fantasi og leg i naturen og sættes fri i en fortælling om venskaber.Med de skønne og udtryksfulde illustrationer vil VILMA VILDBASSE opmuntre børn til at udforske, til at være nysgerrige og eventyrlystne.Serien vil desuden med sine flotte omslag, sin overskuelige tekstmængde og mange illustrationer også appellere til de mere modvillige læsere.VILMA VILDBASSE OG TRYLLEFORMULARENDa Vilma møder VILBASSERNE, forstår hun øjeblikkeligt, at hendes liv aldrig bliver det samme igen.Vilma længes efter at vise sin lille bror Vildnisset, så han også kan blive en Vildbasse. Men Vildnisset er i fare, og kun en meget stærk trylleformular kan redde det.Det er blevet tid for VILDBASSERNE til at skrive en besværgelse og skabe lidt magi.

I denne spændende og lyriske serie hyldes børns fantasi og leg i naturen og sættes fri i en fortælling om venskaber.Med de skønne og udtryksfulde illustrationer vil VILMA VILDBASSE opmuntre børn til at udforske, til at være nysgerrige og eventyrlystne.Serien vil desuden med sine flotte omslag, sin overskuelige tekstmængde og mange illustrationer også appellere til de mere modvillige læsere.VILMA VILDBASSE OG STJERNESKUDDETDa Vilma møder VILBASSERNE, forstår hun øjeblikkeligt, at hendes liv aldrig bliver det samme igen.Der sker magiske ting i Vildnisset, og selvom regnen har skyllet VILDBASSERNES lejr væk, skal det ikke forhindre dem at kigge efter stjerneskud om natten.Men da tre af stjerneskuddene daler ned på jorden, får VILMA noget helt andet at se til, end det hun havde ønsket sig.

Aimed at active amateur astronomers this book provides an up-to-date account of active galaxies. Lists and images of such objects are an important component of this book. The book makes sense of the chaotic and apparently innumerable types of violently active galaxies.

Proceedings of an ISSI Workshop, 26-30 January 1998, Bern, Switzerland

Proceedings of the 180th Symposium of the International Astronomical Union, held in Groningen, The Netherlands, August 26-30, 1996

Proceedings of the 180th Symposium of the International Astronomical Union, held in Groningen, The Netherlands, August 26-30, 1996