We know that the Big Bang of 13 billion years ago saw the birth of the sun and many other planets. It just took an instant for the birth of the universe and the universe has been growing or expanding at the speed of light ever since. There are 100 billion galaxies within the universe and our galaxy is just one of them with over 100 billion stars. The sun which is 90 million miles away from the earth is our own star. The activity on the sun, with its almost constant eruptions of super heated plasma and vast waves of radiation can at times be directed towards the earth. On 15th February 2013, people on their way to work in Chelyabinsk, Russia were to witness an event that happens every fifty to one hundred years. A meteorite, which looked like a fireball, brighter than any of the planets and brighter than the sun, was recorded on the cameras many have in their cars.

The paradox of global universe rotation, as it seems, is today one of its greatest mysteries of nature. The idea originated less than a hundred years, and getting the most correct answer was possible only after the creation of modern cosmology. In this book, the authors forward their visions on the universal rotation problem. At the same time, the arguments in favor of its global rotation absence are presented as well. In fact, different theoretical and observational aspects of evidence that supports the possible rotation of the universe on different cosmological scales were investigated. It was shown that there are correlations between angular momentum and size of the structures. The presented observational picture is that the galaxies, their pairs and compact groups have a non vanishing angular momentum. Moreover, these momenta have the definite tendency to their alignment. An analysis of the distribution of position angles of more than ten thousand extended radio sources shows that the spatial orientation of axes of these objects is anisotropic: they are mostly oriented not in the direction of the celestial pole, but rather in the equatorial direction. The probability that the sky distribution of axes is isotropic is less than 0.00004. It was argued that our universe rotates differentially. Based on the spinning part of Papapetrous equations, it was shown that the rotation radically depends on the properties of the epoch of universal growth. The universes angular velocities have been calculated for three main cosmological epochs: the matter dominated epoch, the transient from matter to vacuum dominated epoch, and the vacuum dominated epoch. In the framework of general relativity, the nonstationary Bianchi type VIII cosmological models with rotation were proposed. As the sources of gravity have been chosen, they are known as comoving perfect fluid with non-comoving dust, comoving perfect fluid with pure radiation, and comoving anisotropic fluid. All of the models contain a rotating dark energy. Recent observations, such as the anomalies in the temperature angular distribution of the cosmic microwave background (CMB), indicate a preferred direction in the universe. The foundation of modern cosmology, however, relies on a homogeneous and isotropic distribution of matter on large scales. Here, the authors consider the preferred axis in the CMB parity violation. The authors also found that this axis coincides with the preferred axes of the CMB quadrupole and octopole, and they all align with the direction of the CMB kinematic dipole, which does not have a cosmological origin. The several exact non-stationary Goedel-type solutions that belong to a large class of shear-free spatially homogeneous spacetimes were presented. The observational effects of the universal rotation in cosmology are analyzed. It was shown that the pure cosmic rotation does not produce either causality violations, parallax effects, or anisotropy of the microwave background radiation. A possible way to detect the cosmic rotation is to search for the angular dependencies of the standard cosmological tests, and a number of new observations can be proposed.

Titan offers a unique opportunity in solar system exploration. It is the smallest known body with an atmosphere. In terms of spacecraft entry dynamics, it has the most accessible atmosphere in the solar system.

So much to read, so little time? Get an overview of Hidden Figures, the true story about the African American female mathematicians who helped NASA win the space race. Margot Lee Shetterly's Hidden Figures tells the incredible real-life account of Dorothy Vaughan, Mary Jackson, Katherine Johnson, and Christine Darden--who, in a time when black women faced seemingly insurmountable obstacles, went to work as "calculators" at NASA. With pencils, paper, and slide rules, they transformed airplane, rocket, and satellite designs--and ensured a World War II victory. Despite the social and political climate at the height of Jim Crow, these women rose up and became integral to the project that put the first man on the moon. From World War II to the Cold War to the civil rights movement to the space race, Hidden Figures tells the story of four remarkable women whose contributions to science led to some of NASA's greatest successes. The book has become a New York Times bestseller as well as a Screen Actors Guild Award-winning and Academy Award-nominated picture starring Taraji P. Henson, Octavia Spencer, Kirsten Dunst, and Kevin Costner. With historical context, important quotes, fascinating trivia, a glossary of terms, and other features, this summary and analysis of Hidden Figures: The American Dream and the Untold Story of the Black Women Mathematicians Who Helped Win the Space Race is intended to complement your reading experience and bring you closer to a great work of nonfiction.

Aimed at engineering students and professionals working in the field of mechanics of space flight, this book examines space tether systems - one of the most forward-thinking directions of modern astronautics. The main advantage of this technology is the simplicity, profitability and ecological compatibility: space tethers allow the execution of various manoeuvers in orbit without costs of jet fuel due to the use of gravitational and electromagnetic fields of the Earth. This book will acquaint the reader with the modern state of the space tether's dynamics, with specific attention on the research projects of the nearest decades. This book presents the most effective mathematical models and the methods used for the analysis and prediction of space tether systems' motion; attention is also given to the influence of the tether on spacecraft's motion, to emergencies and chaotic modes.

A photographic study in Selenography (lunar geology), whereby an attempt is made to determine whether there is evidence for extraterrestrial activity of ET aliens and alien artifacts on the moon and Mars. Illustrated with hundreds of B&W NASA pictures 483 pages.