Planets Of The Known Galaxy
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Planets of the Known Galaxy
This book offers a tour of “the known galaxy”, here defined as the region of interstellar space closest to Earth. The phrase “the known galaxy” has a particular resonance in science fiction, as it refers to the part of the Milky Way that from the perspective of a point in time centuries from now may have been explored and settled by human beings. In the known galaxy, there are gloomy ocean worlds illuminated by the light of exploding stars. There are worlds where precious gems could be as common as pebbles. There are planets eternally wandering between the stars like the Flying Dutchman. There are lava worlds, steam worlds, hot Jupiters, cold Jupiters and maybe even worlds like our Earth. The purpose of the book is to begin to give this region a sense of place, in the same way that Mars is now starting to be appreciated as a location rather than just a planet. In doing so, the book merges our current scientific knowledge of the known galaxy with speculative fiction and with older legends and myths. A sense of place is the feeling that some locations have a special meaning. This emotional connection arises from a combination of cultural and environmental factors that make individuals care about a particular place. It is challenging to create a sense of place for distant locations that no human has visited and for which our current knowledge is limited. This book attempts to take a step in this direction, by dividing the known galaxy into a number of clearly described distinct regions, by providing scientific descriptions of the likely environmental conditions on the known planets of these regions, and by linking these planets to their literary and mythological context. The book is aimed at fans of both science fact and science fiction. It combines a tour of real planets outside of our solar system with tales of their fictional counterparts. The combination of solid scientific facts and analysis with speculation and imagination will be appealing to readers who want to gain a feeling for these planets as places with a back story, rather than just as names somewhere out there in the sky.
Massive Stars in Starbursts
Author: Claus Leitherer
language: en
Publisher: Cambridge University Press
Release Date: 1991-05-16
This book reviews the importance of massive stars in several areas of astrophysics. Massive stars are objects that are 10-100 times the mass of our Sun. Above ten solar masses, loss through stellar winds begins to have a major impact on the evolution of a star. The upper limit of 100 solar masses is derived from observations. Significant progress has now been achieved in massive star research. New models, along with high quality observations, have improved our understanding of the formation, structure, atmosphere, and evolution of these massive objects. They are formed in violent bursts of star formation and are probably related to the phenomena observed in active galactic nuclei. The workshop at the Space Telescope Science Institute examined the interplay between the astrophysics of massive stars and their location in extragalactic starburst regions. There are eighteen chapters by leading researchers. Each has been carefully edited to ensure that the book is a comprehensive introduction to the theory and observation of massive stars in starburst regions.
Planets, Stars, and Galaxies
The latest discoveries about our universe to keep readers updated on the latest developments in space.