This middle grade mystery adventure, told in a unique format including diary entries, maps and photos, takes readers along on the harrowing journeys of two twelve-year-old siblings, separated just before the Nazi siege of their city and each desperate to reunite with one another. Twins Viktor and Nadya are twelve years old when Hitler's Germany declares war on the Soviet Union. With little notice, the city's children are evacuated on trains that are meant to take them to safety. Shockingly, Viktor and Nadya are separated, and disaster befalls them both. As the terrible conflict rages, each embarks on a desperate race across snow and ice, struggling through the destruction in an effort to be reunited. Their chances are slim, but they never lose hope. In an original format--using the kids' diary entries, with historical photos, maps, and drawings throughout, this fictionalized account of the Nazi siege of Leningrad during the Second World War, this heart-stopping story of danger, courage and bravery emphasizes the power of truth and what it means to be a hero.

“An Earth-man’s journey to the planet Mars, where he is treated to a wondrous vision of a communist future, complete with flying cars and 3D color movies.” —Wonders & Marvels A communist society on Mars, the Russian revolution, and class struggle on two planets is the subject of this arresting science fiction novel by Alexander Bogdanov (1873–1928), one of the early organizers and prophets of the Russian Bolshevik party. The red star is Mars, but it is also the dream set to paper of the society that could emerge on earth after the dual victory of the socialist and scientific-technical revolutions. While portraying a harmonious and rational socialist society, Bogdanov sketches out the problems that will face industrialized nations, whether socialist or capitalist. “[A] surprisingly moving story.” —The New Yorker “The contemporary reader will marvel at [Bogdanov’s] foresight: nuclear fusion and propulsion, atomic weaponry and fallout, computers, blood transfusions, and (almost) unisexuality.” —Choice “Bogdanov’s novels reveal a great deal about their fascinating author, about his time and, ironically, ours, and about the genre of utopia as well as his contribution to it.” —Slavic Review

A suspenseful historical YA debut inspired by the true story of an all-female bomber unit in Russia during World War II. World War II has erupted in Valka’s homeland of Russia, and Valka is determined to help the effort. She’s a pilot—and a good one—so she eagerly joins an all-female bomber regiment. Flying has always meant freedom and exhilaration for Valka, but dropping bombs on German targets is something else entirely. The raids are dangerous, but as Valka watches her fellow pilots putting everything on the line in the face of treachery, she learns the true meaning of bravery. As the war intensifies, though, and those around her fall, Valka must decide how much she is willing to risk to defend the skies she once called home. Inspired by the true story of a famous all-female Russian bomber regiment, Gwen C. Katz weaves a tale of strength and sacrifice, of learning to fight for yourself, and of the perils of a world at war.

Magda, a young woman of privilege, is drawn into unexpected danger when she joins the underground struggle against the government of Uruguay.

Perhaps the most common question that a child asks when he or she sees the night sky from a dark site for the first time is: 'How many stars are there?' This happens to be a question which has exercised the intellectual skills of many astronomers over the course of most of the last century, including, for the last two decades, one of the authors of this text. Until recently, the most accurate answer was 'We are not certain, but there is a good chance that almost all of them are M dwarfs. ' Within the last three years, results from new sky-surveys - particularly the first deep surveys at near infrared wavelengths - have provided a breakthrough in this subject, solidifying our census of the lowest-mass stars and identifying large numbers of the hitherto almost mythical substellar-mass brown dwarfs. These extremely low-luminosity objects are the central subjects of this book, and the subtitle should be interpreted accordingly. The expression 'low-mass stars' carries a wide range of meanings in the astronomical literature, but is most frequently taken to refer to objects with masses comparable with that of the Sun - F and G dwarfs, and their red giant descendants. While this definition is eminently reasonable for the average extragalactic astronomer, our discussion centres on M dwarfs, with masses of no more than 60% that of the Sun, and extends to 'failed stars' - objects with insufficient mass to ignite central hydrogen fusion.

Under the Yellow & Red Stars is the remarkable story of a Jewish boy swept up by the horrors of the World War II.

At the end of the Second World War, the Soviet Union decorated 217 men of the U.S. Navy, Coast Guard, and Merchant Marine who had performed "heroic acts" during convoy and anti-submarine duties in the Atlantic. For the last decade, David Schwind has made it his mission to identify and track down every remaining medal and capture the stories of these brave men. This book is the culmination of that quest. Based on extensive archival research and in-person interviews with over 100 recipients or their families, Schwind takes the reader on a photographic and biographical odyssey exploring the lives of each recipient, illuminated by over 600 never before published photographs of exceptionally rare Soviet and American medals, photographs, and related documents still in the possession of the veterans and their families today.