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A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. [1] [2] The word is derived from the Greek galaxias (γαλαξίας), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.
An artist's conception of the Milky Way. Galactic astronomy is the study of the Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything outside our galaxy, including all other galaxies.
In cosmology, the study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies.
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In summer, Le Hoan's local officials from To Mau (modern-day Quang Ninh) led a village force of 5,000 men and sailors who invaded China, plundered Luzhou near Yongzhou, but were defeated by Chinese general Yang Wenjie. [8] In 1004, Le Hoan sent a mission to China led by one of his sons, Prince Lê Minh Đề.
In astrobiology and planetary astrophysics, the galactic habitable zone is the region of a galaxy in which life is most likely to develop. The concept of a galactic habitable zone analyzes various factors, such as metallicity (the presence of elements heavier than hydrogen and helium) and the rate and density of major catastrophes such as supernovae, and uses these to calculate which regions ...
Under their original name, the band released two albums, Galaxie 500 (2002) and Le Temps au point mort (2006), on the C4 Records label. Following the release of Le Temps au Point Mort, Galaxie 500 was nominated for the Group of the Year award in the 10th annual MIMI (Montreal International Music Initiative) awards.
Au Tonkin, les Résidents centraliseront avec le concours des Quan-Bo le service du même impôt, dont ils surveilleront la perception et l'emploi. Une commission composée de commissaires français et annamites déterminera les sommes qui devront être affectées aux diverses branches de l'administration et aux services publics.