Description

Immediate dispatch from Somerset. Nice older book in good condition. Pages in unused condition. Plates bright and vivid.. Hardcover. English. See images for condition.

About the book >.>.> Grains of carbon based cosmic dust the stuff of which every reader is made were rec- ognized in the early photographs of nebulae and galaxies. How pervasive were these dusty Shrouds of the Night in galaxies external to our Milky Way? It was only in 1994 that the dilemma facing astronomers as to the existence and amounts of cold and very cold dust grains in galaxies other than our Milky Way was definitely solved by author David Block and his collaborators. The temperatures of these grains may be minus 253 degrees Centigrade – and even colder. There is one story of the enigmatic masks themselves and another of the awesome New View of spiral galaxies behind their masks. The duality in the structure of spiral galaxies was featured on the cover of the British journal Nature in 1991. (OS)