Welcome to the Universe In 3D

"If you go out and simply look up, everything - from the Moon to the planets to the stars to the band of the Milky Way - appears to be pasted on the two-dimensional surface of the dome of the sky. Yet, the story of astronomy as a science is how, over time, astronomers have discovered the cosmos in depth. It is the story of the measurement of position and distance, and how our 2D view of the sky above us evolved into a more sophisticated comprehension of the real 3D depths of space. The distances to the stars were first measured using the parallax effect - that is, by comparing the view from opposite sides of the Earth's orbit. This is the same effect that your brain uses (comparing the views from your left and right eyes) to effortlessly give you depth perception. In this book, the authors present the most spectacular stereo images available in astronomy. (Stereo images are pairs of images of the same object, taken 6 months apart - which, as the Earth turns, means viewed from opposite