Over the past two decades, advanced technologies and space missions have completely transformed our understanding of potential life beyond Earth. The resulting field, astrobiology, has become a multidisciplinary scientific discipline, encompassing many of the natural sciences and having implications for many areas of research. This book presents an introduction and overview of astrobiology. It deals with a wide range of fields, from the search for signs of life on planets in our solar system, to the discovery of exoplanets in distant solar systems and assessing the potential for life there. The book is based on the course of the same name that the author taught for more than two decades at the Hebrew University, and the course recorded on YouTube in the Cornerstones program , which has accumulated tens of thousands of views. The book is accessible not only to students of natural sciences, but to any reader who wants to learn about and understand the fascinating possibilities of life on other worlds.

Among the articles in this issue: Outi Bat-El Foux | On the Importance of Word Edges Roey Gafter | Sub-Phonemic Vocalic Variation in Hebrew: An Acoustic Study with a Social Perspective Lior Laks | Between Ravioli and Raviol: Factors of Vowel Deletion in Loanwords Dorit Ravid, Shai Karasenti & Orit Ashkenazi | Dual Hebrew Nouns in Mother-Toddler Discourse: A Longitudinal Study of Form and Function

If a large rock had collapsed in a desert or a tree had fallen in the heart of a distant forest several hundred miles away from living beings, would it have made a sound upon its fall? Different people will give different answers to this ancient question. Objectively, some will say that a sound would have been heard because sound does not exist only in the mind of the listener. Subjectively, some would say that a sound requires someone to listen to it. What is correct? Is this complex answer related to the essence of sound? It's All in the Sound investigates the phenomenon of sound and tries to understand it and answer, among other things, the above questions. It was written to meet the needs of students and teachers, with a desire to update the teaching of physics and fill the shortage of textbooks in this field, which is associated with teaching the subject of sound waves. The gradual development of the concept of sound is discussed in the book by building structured experimental illustrations, as well as mathematical expressions describing this miraculous phenomenon. The illustrations were chosen so that a curious reader could repeat most of the experiments in a home environment without the need for special laboratory equipment. Even for readers unfamiliar with the basics of physical mathematics that describe sound, this book may provide a unique experience and open up a new window to understanding physics.

Usury: Moneylending, Money and Society in Rabbinic Literature is a study of the moneylending norms in the early stratum of rabbinic literature. It shows how these norms use the language of legal formalism to construct a community of status-equals, into which rabbinic adherents can buy their entry by making the correct investment choices. Placing these norms in a broad historical and intercultural context, it is a fresh look at Jewish moneylending norms, the first in over 30 years.

We are pleased to present readers with volume 23 of the journal Massorot: Studies in Language Traditions and Jewish Languages . The present volume contains nine articles focusing on diverse facets of Jewish Languages, and on the traditions and features of Hebrew reflected in the varied genres cultivated in that language. Five of the articles deal with translations. Two of them concern Bible translations into Judeo-Arabic. Moshe Bar-Asher, who has analyzed and published widely on the Western šarḥ – that is, the Jewish Maghrebi translation of the Bible – examines euphemism and language refinement "in the face of danger" with respect to the šarḥ of the Pentateuchal books of Numbers and Deuteronomy. Tamar Zewi examines alternative translations in the Judeo-Arabic Tafsīr of R. Saadia Gaon on Exodus, on the basis of the excellent manuscript of the commentary, Yevr. II C1, housed in the National Library of Russia in Saint Petersburg. Nahem Ilan discusses the Judeo-Arabic translation of the second part of the Hebrew work Pele Yo‘eṣ by Rabbi Eliezer Papo (Bulgaria, 1786–1827), composed in the middle of the 20th century by Rabbi Makhlouf Idan of Djerba. Yaffa Yisraeli analyzes the translation into the Jewish Neo-Aramaic dialect of Saqqiz (Iranian Kurdistan) of the noted piyyuṭ (liturgical poem) “Yashen al teradam,” by Rabbi Yehudah Halevy. Ora (Rodrigue) Schwarzwald offers readers a comparative analysis of six Ladino translations of the description of the lover in Song of Songs, Chapter 5, representing both the Eastern and Western Ladino traditions, from the 16th–20th centuries. Assaf Ben-Moshe draws our attention to the linguistic diversity of the Jews of Iraq by comparing the divergences between the Judeo-Arabic variety used by the Jews of ˁĀna and that used by the Baghdad Jewish community. Dalit Assouline examines the Hebrew used by Mizrahi rabbis who joined the Breslav Hasidic sect, originally of Ashkenazic origin. Efraim Hazan and Rachel Hitin-Mashiah zooms in on another genre, the epistles exchanged by rabbinic scholars concerning books. Kedem Golden deals with Hebrew poetic riddles.

Among the articles in this issue: Ohad Abudraham | The Prefix qa- in Classical Mandaic Ilan Eldar | 'Adat Devorim ('Swarm of Bees') Yoel Elitzur | The History of Aramaic 'Igar and its Reflection in the Mishna Chanan Ariel | בגדי השרד: Linguistic and Philological Observations on Babylonian Talmud Yoma 72b

The Two Mekhiltot on the Jethro Portion (Exodus 18) is, in a sense, a complement to Menahem Kahana's previous book, The Two Mekhiltot on the Amalek Portion . The book is based on new text editions of Mekhilta d'Rabbi Ishmael and Mekhilta d'Rabbi Shimon ben Yochai on the Jethro portion. It includes a systematic and detailed commentary on the exegeses of the Mekhiltot, shedding new light on many exegeses – their literal meaning, their real and historical context, and the worldviews reflected in them. The book reviews the previous editions of The Two Mekhiltot on the Jethro Portion and presents the important contribution of fragments from the Cairo Geniza that were discovered after the previous editions were published. It compares the traditions of the two Mekhiltot in their language, style, and content, and establishes the insight that in the Jethro portion, as in the Amalek portion, the tradition of Mekhilta d'Rabbi Ishmael generally takes precedence.

The New Arabic-Hebrew Dictionary is a comprehensive reference of the Arabic language throughout history, with a focus on its use in spoken and written media. Given Arabic's rich literary tradition spanning over 1,400 years, the language naturally incorporates words and expressions rooted in ancient literary strata, including the Qur'an, classical poetry, proverbs, the Hadith, jurisprudential literature, Adab literature, and historical texts. Terms and expressions from the realm of Islamic theology and jurisprudence, which were considered archaic 50 or 60 years ago, have regained prominence with the rise of fundamentalist Islam in the 1970s. This dictionary offers translations and explanations for these terms as well. After publishing the full dictionary in a large, 700-page edition, we decided it would be useful to publish a more concise version—smaller, portable, and easier to handle. This edition differs from the full dictionary in that it omits examples and comments, as well as archaic entries from ancient poetry, the Hadith, and jurisprudential literature. To the full edition of The New Arabic-Hebrew Dictionary

Mithabrim: Syntax for Higher Levels is a practice, comprehension and expression booklet on syntax topics. The booklet is intended for advanced students according to the curriculum of the Hebrew Teaching Unit at the Hebrew University of Jerusalem. The booklet has two purposes. The first of which is the acquisition and practice of syntactic components and structures at the advanced levels. The topics are practiced in several ways: open exercises, closed exercises, conversions, rewrites. Some of the grammatical topics are preceded by a short grammatical explanation for that section, and at the end of the booklet there are tables related to the syntactic topics as well as solutions to the closed exercises. The second goal of Mithabrim is to cultivate students' comprehension and expression skills with the help of reading passages (essays, articles, etc.). The reading sections, which incorporate the new syntactic topic, deal with different and diverse contents. This is the infrastructure for the activity of reading comprehension and the activity of oral or written expression. For each section, both comprehension questions that relate to the content of the section and expression questions that encourage discussion and conversation on the topic have been added.

The emergence of the Yiddish and Hebrew press in the United States was one of the great cultural enterprises of the Jewish immigrants from the Russian and Austro-Hungarian empires in the last third of the nineteenth century, and its influence on the lives of individuals and communities was enormous. From the Cellar to the Top Floor traces the journey of the Hebrew Alphabet press across the Atlantic following the Jewish mass migration. Against the background of the American press, the book discusses the development of the Hebrew and Yiddish press from an economic, cultural and political point of view. It traces the ongoing negotiations between the Jewish immigrant society and the American majority society at the end of the nineteenth century. Based on personal correspondence, legal documents, archival evidence, and contemporary press materials ,the book offers the first comprehensive analysis in Hebrew of the formative decades in the emergence of one of the leading cultural institutions in modern Jewish society.

Yiddish in Israel: A History challenges the commonly held view that Yiddish was suppressed or even banned by Israeli authorities for ideological reasons, offering instead a radical new interpretation of the interaction between Yiddish and Israeli Hebrew cultures. Author Rachel Rojanski tells the compelling and yet unknown story of how Yiddish, the most widely used Jewish language in the pre-Holocaust world, fared in Zionist Israel, the land of Hebrew. Following Yiddish in Israel from the proclamation of the State until today, Rojanski reveals that although Israeli leadership made promoting Hebrew a high priority, it did not have a definite policy on Yiddish. The language's varying fortune through the years was shaped by social and political developments, and the cultural atmosphere in Israel. Public perception of the language and its culture, the rise of identity politics, and political and financial interests all played a part. Using a wide range of archival sources, newspapers, and Yiddish literature, Rojanski follows the Israeli Yiddish scene through the history of the Yiddish press, Yiddish theater, early Israeli Yiddish literature, and high Yiddish culture. With compassion, she explores the tensions during Israel's early years between Yiddish writers and activists and Israel's leaders, most of whom were themselves Eastern European Jews balancing their love of Yiddish with their desire to promote Hebrew. Finally Rojanski follows Yiddish into the 21st century, telling the story of the revived interest in Yiddish among Israeli-born children of Holocaust survivors as they return to the language of their parents.

The Twelve Prophets volume of the the Hebrew University Bible Project presents a diplomatic editio maior of the text of the Hebrew Bible, based upon the Aleppo Codex, with variants from other textual testaments recorded in a system of apparatuses. The readings collated in the edition are culled from a broad variety of sources, including the ancient translations (Greek Septuagint and revisions, Latin Vulgate, Syriac Peshitta, Aramaic Targum Jonathan), Dead Sea Scrolls, biblical quotations in rabbinic literature, Genizah fragments, a broad array of medieval Hebrew manuscripts representing the Masoretic text, up to Jacob Ben-Hayyim’s Second Biblia Rabbinica of 1524-25. This extensive documentation reflects the attested transmission history of the biblical text, covering a period of almost two millennia.