This book provides a compilation of in-depth articles and reviews on key topics within gravitation, cosmology and related issues. It is a celebratory volume dedicated to Prof. Thanu Padmanabhan ("Paddy"), the renowned relativist and cosmologist from IUCAA, India, on the occasion of his 60th birthday. The authors, many of them leaders of their fields, are all colleagues, collaborators and former students of Paddy, who have worked with him over a research career spanning more than four decades. Paddy is a scientist of diverse interests, who attaches great importance to teaching. With this in mind, the aim of this compilation is to provide an accessible pedagogic introduction to, and overview of, various important topics in cosmology, gravitation and astrophysics. As such it will be an invaluable resource for scientists, graduate students and also advanced undergraduates seeking to broaden their horizons.

Many of the seven billion people who live on the earth look to either science or religion as the ultimate source of authority in their lives. But why must there be a conflict between the two? Why can't science and religion support each other?

"The Unity of Truth" shows why and how it makes perfect sense for science and religion to be mutually supportive. Beginning with the accepted truths of modern science and the beliefs of traditional Christianity, authors Allen A. Sweet, C. Frances Sweet, and Fritz Jaensch use their diverse expertise to deliver a deeper level of understanding of the ways in which science and religion can coexist.

Relying on a thorough knowledge of physics, theology, and mathematics, this study addresses the paradox of how God communicates with our material world without violating any of the laws of science. Individual chapters discuss some of the most popular quandaries associated with combining science and religion. In addition, it considers the beginning and end of our universe, the evolution of life, and the meaning of human emotions from the scientific and theological perspectives, thus pushing understanding to a higher plateau of wisdom.

Rational and devoid of rhetoric, "The Unity of Truth" seeks to help resolve the ongoing battle between religion and science, delivering a thoughtful narrative designed to open minds and hearts.

Roger Penrose, one of the most accomplished scientists of our time, presents the only comprehensive and comprehensible account of the physics of the universe. From the very first attempts by the Greeks to grapple with the complexities of our known world to the latest application of infinity in physics, "The Road to Reality" carefully explores the movement of the smallest atomic particles and reaches into the vastness of intergalactic space. Here, Penrose examines the mathematical foundations of the physical universe, exposing the underlying beauty of physics and giving us one the most important works in modern science writing.

This book brings together papers from a conference that took place in the city of L'Aquila, 4-6 April 2019, to commemorate the 10th anniversary of the earthquake that struck on 6 April 2009. Philosophers and scientists from diverse fields of research debated the problem that, on 6 April 1922, divided Einstein and Bergson: the nature of time. For Einstein, scientific time is the only time that matters and the only time we can rely on. Bergson, however, believes that scientific time is derived by abstraction, even in the sense of extraction, from a more fundamental time. The plurality of times envisaged by the theory of Relativity does not, for him, contradict the philosophical intuition of the existence of a single time. But how do things stand today? What can we say about the relationship between the quantitative and qualitative dimensions of time in the light of contemporary science? What do quantum mechanics, biology and neuroscience teach us about the nature of time? The essays collected here take up the question that pitted Einstein against Bergson, science against philosophy, in an attempt to reverse the outcome of their monologue in two voices, with a multilogue in several voices.

Join the crew of space shuttle Enterprise as they prepare to take the first step into the twenty-first century. Step aboard the world's first reusable space vehicle with science writer Robert M. Powers for a cockpit view of a launch, orbit, re-entry, and return to earth. Preview the scheduled NASA shuttle missions in hundreds of line drawings and photographs of the crew at work in orbit. The shuttle system is the key to unlocking the next era of technology and the forerunner of space transportation systems of tomorrow: The world's first spaceship, the Enterprise, is here!

The year is 2007, the fiftieth anniversary of the Space Age. Space shuttle Discovery is about o dock at the first permanent U. S. space station, which author Dick Lattimer called Friendship. In all but name, the space station depicted in these pages is based on NASA plans. To help you project yourself on board, Lattimer has created a fictional crew, including three rookie crew members-doctoral candidates who have been chosen to do special work on their theses. By viewing the space station through their eyes, you'll learn about the important work to be done there. Friendship reflects existing technology and projected plans. As part of his extensive research, Lattimer, along with his son, illustrator Michael Lattimer, had the unique opportunity to spend several different days aboard the space station mockup at Huntsville, Alabama. Inevitably, there will be design modification. But life aboard out first permanent space station will probably resemble life on space station Friendship. In these pages you'll v

Time, it has been said, is the enemy. In an era of harried lives, time seems increasingly precious as hours and days telescope and our lives often seem to be flitting past. And yet, at other times, the minutes drag on, each tick of the clock excruciatingly drawn out. What explains this seeming paradox? Based upon a full decade's empirical research, Michael G. Flaherty's new book offers remarkable insights on this most universal human experience. Flaherty surveys hundreds of individuals of all ages in an attempt to ascertain how such phenomena as suffering, violence, danger, boredom, exhilaration, concentration, shock, and novelty influence our perception of time. Their stories make for intriguing reading, by turns familiar and exotic, mundane and dramatic, horrific and funny. A qualitative and quantitative tour de force, A Watched Pot presents what may well be the first fully integrated theory of time and will be of interest to scientists, humanists, social scientists and the educated public alike. A Choice Outstanding Academic Book.

An adventure in scientific discovery Pluto, the farthermost planet in the solar system, some 3,673 million mites from the Sun, was discovered by Clyde Tombaugh at the Lowell Observatory in 1930. The fiftieth anniversary of Pluto's discovery will be celebrated in 1980 and OUT OF THE DARKNESS: THE PLANET PLUTO tells the exciting scientific story of the twenty-five year search for a planet X beyond Neptune, and its discovery-the only planet found in the twentieth century. The planets Mercury, Venus. Mars, Jupiter, and Saturn were all known since antiquity. Then Sir William Herschel discovered Uranus in 1781, and 65 years later, in 1846, Johann Calle and Urbain le Verner discovered Neptune. Variations in orbital perturbations of the planets and theoretical astronomy were responsible for predicting and discovering the three outermost planets (Uranus, Neptune, and Pluto) and so Pluto's story is also, to some extent, the story of its planetary neighbors. What kind of world is Pluto? Much is still a mystery (its

This book describes how and why the early modern period witnessed the marginalisation of astrology in Western natural philosophy, and the re-adoption of the cosmological view of the existence of a plurality of worlds in the universe, allowing the possibility of extraterrestrial life. Founded in the mid-1990s, the discipline of astrobiology combines the search for extraterrestrial life with the study of terrestrial biology - especially its origins, its evolution and its presence in extreme environments. This book offers a history of astrobiology's attempts to understand the nature of life in a larger cosmological context. Specifically, it describes the shift of early modern cosmology from a paradigm of celestial influence to one of celestial inhabitation. Although these trends are regarded as consequences of Copernican cosmology, and hallmarks of a modern world view, they are usually addressed separately in the historical literature. Unlike others, this book takes a broad approach that examines the relationship of the two. From Influence to Inhabitation will benefit both historians of astrology and historians of the extraterrestrial life debate, an audience which includes researchers and advanced students studying the history and philosophy of astrobiology. It will also appeal to historians of natural philosophy, science, astronomy and theology in the early modern period.

This thesis focuses on the very high Mach number shock wave that is located sunward of Saturn's strong magnetic field in the continuous high-speed flow of charged particles from the Sun (the solar wind). The author exploits the fact that the Cassini spacecraft is the only orbiter in a unique parameter regime, far different from the more familiar near-Earth space, to provide in-situ insights into the unreachable exotic regime of supernova remnants. This thesis bridges the gap between shock physics in the Solar System and the physics of ultra-high Mach number shocks around the remnants of supernova explosions, since to date research into the latter has been restricted to theory, remote observations, and simulations.

The authors of this volume have been intimately connected with the conception of Big Bang model since 1947. They present a picture of what is now believed to be state-of-the-art knowledge about the evolution of the expanding universe and delineate the story of the development of the Big Bang model as they have seen and lived it from their own unique vantage point.

It was all part of man's greatest adventure--landing men on the Moon and sending a rover to Mars, finally seeing the edge of the universe and the birth of stars, and launching planetary explorers across the solar system to Neptune and beyond.
        
The ancient dream of breaking gravity's hold and taking to space became a reality only because of the intense cold-war rivalry between the superpowers, with towering geniuses like Wernher von Braun and Sergei Korolyov shelving dreams of space travel and instead developing rockets for ballistic missiles and space spectaculars. Now that Russian archives are open and thousands of formerly top-secret U.S. documents are declassified, an often startling new picture of the space age emerges:

the frantic effort by the Soviet Union to beat the United States to the Moon was doomed from the beginning by gross inefficiency and by infighting so treacherous that Winston Churchill likened it to "dogs fighting under a carpet";

there was more than science behind the United States' suggestion that satellites be launched during the International Geophysical Year, and in one crucial respect, Sputnik was a godsend to Washington;

the hundred-odd German V-2s that provided the vital start to the U.S. missile and space programs legally belonged to the Soviet Union and were spirited to the United States in a derring-do operation worthy of a spy thriller;

despite NASA's claim that it was a civilian agency, it had an intimate relationship with the military at the outset and still does--a distinction the Soviet Union never pretended to make;

constant efforts to portray astronauts and cosmonauts as "Boy Scouts" were often contradicted by reality;

the Apollo missions to the Moon may have been an unexcelled political triumph and feat of exploration, but they also created a headache for the space agency that lingers to this day.

        
This New Ocean is based on 175 interviews with Russian and American scientists and engineers; on archival documents, including formerly top-secret National Intelligence Estimates and spy satellite pictures; and on nearly three decades of reporting. The impressive result is this fascinating story--the first comprehensive account--of the space age. Here are the strategists and war planners; engineers and scientists; politicians and industrialists; astronauts and cosmonauts; science fiction writers and journalists; and plain, ordinary, unabashed dreamers who wanted to transcend gravity's shackles for the ultimate ride. The story is written from the perspective of a witness who was present at the beginning and who has seen the conclusion of the first space age and the start of the second.


From the Hardcover edition.

In his PhD dissertation Martin Bo Nielsen performs observational studies of rotation in stars like the Sun. The interior rotation in stars is thought to be one of the driving mechanisms of stellar magnetic activity, but until now this mechanism was unconstrained by observational data. NASA's Kepler space mission provides high-precision observations of Sun-like stars which allow rotation to be inferred using two independent methods: asteroseismology measures the rotation of the stellar interior, while the brightness variability caused by features on the stellar surface trace the rotation of its outermost layers. By combining these two techniques Martin Bo Nielsen was able to place upper limits on the variation of rotation with depth in five Sun-like stars. These results suggest that the interior of other Sun-like stars also rotate in much the same way as our own Sun.

This monograph traces the development of our understanding of how and where energetic particles are accelerated in the heliosphere and how they may reach the Earth. Detailed data sets are presented which address these topics. The bulk of the observations are from spacecraft in or near the ecliptic plane. It is timely to present this subject now that Voyager-1 has entered the true interstellar medium. Since it seems unlikely that there will be a follow-on to the Voyager programme any time soon, the data we already have regarding the outer heliosphere are not going to be enhanced for at least 40 years.

This thesis describes the physics and computational aspects of an end-to-end simulator to predict the performance of a Space-based Far Infrared Interferometer. The present thesis also includes, the science capabilities and instrumental state-of-the art. The latter is the ambitious next step which the Far-Infrared Astrophysical community needs to take to improve in anyway on the results of the most recent and current space telescopes in this wavelength region. This thesis outlines the requirements involved in such a mission and describes the most promising technique to capture most of the astrophysical information by combining spectroscopy to spatial interferometer. The simulation of such a system is extremely complex requiring multiple Fourier transforms each of which is subject to instrument non-idealities and appropriate optimization techniques. As a conclusion, the thesis provides an example of the basic performance achievable with such an instrument when targeting a young star formation region.

This book addresses a variety of topics within the growing discipline of Archaeoastronomy, focusing especially on Archaeoastronomy in Sicily and the Mediterranean and Cultural Astronomy. A further priority is discussion of the astronomical and statistical methods used today to ascertain the degree of reliability of the chronological and cultural definition of sites and artifacts of archaeoastronomical interest. The contributions were all delivered at the XVth Congress of the Italian Society of Archaeoastronomy (SIA), held under the rubric "The Light, the Stones and the Sacred" - a theme inspired by the International Year of Light 2015, organized by UNESCO. The full meaning of many ancient monuments can only be understood by examining their relation to light, given the effects that light radiation produces in "interacting" with lithic structures. Moreover, in addition to manifestations of the sacred through the medium of light (hierophanies), there are many ties between temples, tombs, megalithic structures, and the architecture of almost all ages and cultures and our star, the Sun. Readers will find the book to be a source of fascinating insights based on synergies between the disciplines of archaeology and astronomy.

This book uses new data from the very low radio frequency telescope LOFAR to analyse the magnetic structure in the giant radio galaxy NGC6251. This analysis reveals that the magnetic field strength in the locality of this giant radio galaxy is an order of magnitude lower than in other comparable systems. Due to the observational limitations associated with capturing such huge astrophysical structures, giant radio galaxies are historically a poorly sampled population of objects; however, their preferential placement in the more rarefied regions of the cosmic web makes them a uniquely important probe of large-scale structures. In particular, the polarisation of the radio emissions from giant radio galaxies is one of the few tools available to us that can be used to measure magnetic fields in regions where the strength of those fields is a key differentiator for competing models of the origin of cosmic magnetism. Low frequency polarisation data are crucial for detailed analyses of magnetic structure, but they are also the most challenging type of observational data to work with. This book presents a beautifully coupled description of the technical and scientific analysis required to extract valuable information from such data and, as the new generation of low frequency radio telescopes reveals the larger population of giant radio galaxies, it offers a significant resource for future analyses.

This thesis presents a pioneering method for gleaning the maximum information from the deepest images of the far-infrared universe obtained with the Herschel satellite, reaching galaxies fainter by an order of magnitude than in previous studies. Using these high-quality measurements, the author first demonstrates that the vast majority of galaxy star formation did not take place in merger-driven starbursts over 90% of the history of the universe, which suggests that galaxy growth is instead dominated by a steady infall of matter. The author further demonstrates that massive galaxies suffer a gradual decline in their star formation activity, providing an alternative path for galaxies to stop star formation. One of the key unsolved questions in astrophysics is how galaxies acquired their mass in the course of cosmic time. In the standard theory, the merging of galaxies plays a major role in forming new stars. Then, old galaxies abruptly stop forming stars through an unknown process. Investigating this theory requires an unbiased measure of the star formation intensity of galaxies, which has been unavailable due to the dust obscuration of stellar light.

Of Clocks and Time takes readers on a five-stop journey through the physics and technology (and occasional bits of applications and history) of timekeeping. On the way, conceptual vistas and qualitative images abound, but since mathematics is spoken everywhere the book visits equations, quantitative relations, and rigorous definitions are offered as well. The expedition begins with a discussion of the rhythms produced by the daily and annual motion of sun, moon, planets, and stars. Centuries worth of observation and thinking culminate in Newton's penetrating theoretical insights since his notion of space and time are still influential today. During the following two legs of the trip, tools are being examined that allow us to measure hours and minutes and then, with ever growing precision, the tiniest fractions of a second. When the pace of travel approaches the ultimate speed limit, the speed of light, time and space exhibit strange and counter-intuitive traits. On this fourth stage of the journey, Einstein is the local tour guide whose special and general theories of relativity explain the behavior of clocks under these circumstances. Finally, the last part of the voyage reverses direction, moving ever deeper into the past to explore how we can tell the age of "things" - including that of the universe itself.