Rumforskning

For all those who wonder about our bizarre universe, and those who want to overthrow the big bang, this book gives you 'just the facts': the observations that have shaped established ideas and theories. The authors pull back the curtains, and show how cosmology really works.

What's odd, scary, incredible and wonderful all at the same time? Our universe!Jump in at the deep end and learn all about our universe's super space sights! You won't believe your eyes... or will you?

Exploration is a human trait. For as long as humans have walked the Earth they have been inspired to achieve more and search further. For those interested in spaceflight, the greatest adventure of them all is to journey through interstellar space. This book discusses five prominent interstellar propulsion systems and analyses their feasibility. It also discusses a relevant interstellar travel case study method.

This book investigates Unmanned Aircraft Systems (UAS) with a payload capacity of one metric ton for transportation. The authors provide a large variety of perspectives-from economics to technical realization. With the focus on such heavy-lift cargo UAS, the authors consider recently established methods for approval and certification, which they expect to be disruptive for unmanned aviation. In particular, the Specific Operations Risk Assessment (SORA) and its impact on the presented technological solutions and operational concepts are studied. Starting with the assumption of an operation over sparsely populated areas and below common air traffic, diverse measures to further reduce operational risks are proposed. Operational concepts derived from logistics use-cases set the context for an in-depth analysis including aircraft and system design, safe autonomy as well as airspace integration and datalinks. Results from simulations and technology demonstrations are presented as a proof of concept for solutions proposed in this book.

This open access book serves as textbook on the physics of the radiation belts surrounding the Earth. Discovered in 1958 the famous Van Allen Radiation belts were among the first scientific discoveries of the Space Age. Throughout the following decades the belts have been under intensive investigation motivated by the risks of radiation hazards they expose to electronics and humans on spacecraft in the Earth¿s inner magnetosphere.This textbook teaches the field from basic theory of particles and plasmas to observations which culminated in the highly successful Van Allen Probes Mission of NASA in 2012-2019. Using numerous data examples the authors explain the relevant concepts and theoretical background of the extremely complex radiation belt region, with the emphasis on giving a comprehensive and coherent understanding of physical processes affecting the dynamics of the belts. The target audience are doctoral students and young researchers who wish to learn about the physicalprocesses underlying the acceleration, transport and loss of the radiation belt particles in the perspective of the state-of-the-art observations.

This volume presents the conference proceedings from FinDrones2020. The book highlights recent developments in drone technology by experts, academicians, and entrepreneurs for applications in agriculture, forestry, and other industries. Emphasis is placed on contextualizing the conference presentations and content to Finland and the unique challenges typical to this region. The work will be of interest to academicians and professionals involved in remote sensing applications of unmanned aerial vehicles, as well as enthusiasts of drone technological developments.

Tina Ibsen interviewer Jens Frydenvang, der har deltaget i styringen af Marsrobotterne, Morten Bo Madsen, der har udviklet eksperimenter til undersøgelse af Marsstøvets sammensætning, og Line Drube, der har deltaget i projektet Mars Desert Research Station i Utah, hvor man undersøger, hvordan man kan bo og arbejde sammen under fremtidens Marsmissioner.

This book details science of hypersonics especially focusing on propulsion aspects such as supersonic combustion ramjets and their applications, and also includes lift and drag in hypersonic flight and their mathematical and physical explanation.It provides charts and data from hypersonic testing and measurements from actual vehicles and engines built in the past. Criteria to dimension hypersonic powered and unpowered vehicles (gliders) based on fundamental fluid dynamics and backed by flight testing; criteria to preliminary sizing vehicles and preliminary dimensioning of supersonic combustors are introduced. The book will serve better theoretical understanding of drag, lift and how to apply them to the design of hypersonic vehicles, as well as data to size vehicles and supersonic combustion ramjet (SCRJ) systems.This book will be a useful reference for researchers and designers in hypersonic vehicles but also second or third-year graduate students.

"A comprehensive insider's account of the discovery of gravitational waves, including insights on the physics theory and the critical LIGO technology that made it possible"--