Our Universe 2: Redshift, Expansion & Dark Energy

Our Universe 2: Redshift, Expansion & Dark Energy

by Robert Piccioni
     
 

This book continues our exploration of cosmology, the science of the universe as a whole.

One of the most profound questions in cosmology is: Has our universe existed forever, or did it have a beginning? Philosophers, theologians, and scientists have argued both sides of this debate, for millennia. The first observational evidence came in 1929 when American… See more details below

Overview

This book continues our exploration of cosmology, the science of the universe as a whole.

One of the most profound questions in cosmology is: Has our universe existed forever, or did it have a beginning? Philosophers, theologians, and scientists have argued both sides of this debate, for millennia. The first observational evidence came in 1929 when American astronomer Edwin Hubble announced his discovery that the universe was expanding, and therefore had a beginning. This was one of the most important discoveries of the 20th century.

This eBook examines the key steps leading to Hubble’s discovery, including the contributions of Henrietta Leavitt and the understanding of supernovae and redshifts, color changes of starlight that reveal motion. We explain what “expansion” means, what is expanding and what isn’t. We then explore the accelerating expansion of our universe and dark energy.

Product Details

ISBN-13:
2940016528915
Publisher:
Real Science Publishing
Publication date:
05/20/2013
Series:
Everyone's Guide Series , #15
Sold by:
Barnes & Noble
Format:
NOOK Book
Sales rank:
1,114,296
File size:
1 MB

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