A ray of light in a sea of dark matter / Charles Keeton

Author:: Keeton, Charles
Published:: New Brunswick, New Jersey : Rutgers University Press, [2014]
Physical Description:: xi, 89 pages : illustrations ; 22 cm.

Availability

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Series:

A volume in the Pinpoints series

Contents:

What's in the dark? -- When mass is like glass -- How do you weigh a galaxy? -- Is dark matter MACHO or WIMPy? -- Finding what's missing -- "A long time ago in a galaxy far, far away" -- Glossary -- Notes -- Notes on sources.

Summary:

"What's in the dark? Countless generations have gazed up at the night sky and asked this question--the same question that cosmologists ask themselves as they study the universe.
"The answer turns out to be surprising and rich. The space between stars is filled with an exotic substance called "dark matter" that exerts gravity but does not emit, absorb, or reflect light. The space between galaxies is rife with "dark energy" that creates a sort of cosmic antigravity causing the expansion of the universe to accelerate. Together, dark matter and dark energy account for 95 percent of the content of the universe. Scientists and journalists routinely use the terms when they talk about the universe, but do you really understand what it all means?
"A Ray of Light in a Sea of Dark Matter offers readers a concise, accessible explanation of how astronomers probe dark matter. Readers quickly gain an understanding of what might be out there, how scientists arrive at their findings, and why this research is important to us. Engaging and insightful, Charles Keeton gives everyone an opportunity to be an active learner in our ever-expanding universe." --Back cover.

Subject(s):

Dark matter (Astronomy)

ISBN:

9780813565347
0813565340

Bibliography Note:

Includes bibliographical references.

Source of Acquisition:

Purchased with funds from the Paterno Libraries Endowment; 2014

Endowment Note:

Paterno Libraries Endowment

View MARC record | catkey: 14700429