DK 
Universe 
The Definitive Visual Guide

Marvel at the wonders of the Universe, from stars and planets to black holes and nebulae, in this exploration of our Solar System and beyond.
Universe opens with a look at astronomy and the history of the Universe, using 3D artworks to provide a comprehensive grounding in the fundamental concepts of astronomy, including the basic techniques of practical astronomy.
The core of the ebook is a tour of the cosmos covering the Solar System, the Milky Way, and galaxies beyond our own. Explanatory pages introduce different celestial phenomena, such as galaxies, and are followed by catalogues that profile the most interesting and important examples.
A comprehensive star atlas completes the picture, with entries on each of the 88 constellations and a monthly sky eguide showing the night sky as it appears throughout the year as viewed from both the northern and southern hemispheres.