Signatures of Life: Science Searches the Universe

Signatures of Life: Science Searches the Universe

About this item

Hardcover, Prometheus Books, 2013, ISBN13 9781616146689, ISBN10 1616146680
$24.95
$24.95
+ $8.97 shipping
Only 1 left!
Sold & Shipped by Walmart
Faster shipping options available at checkout
Pickup not available  
Loading options...
Sold & Shipped by Walmart

$8.97 shipping

 from this seller
 

Shipping

Shipping options from Walmart
Type
Arrives
Cost
Standard
Data unavailable
$7.97
Value
Data unavailable
$5.97
Expedited
Data unavailable
$8.97
Rush
Data unavailable
$10.97

Pickup not available

 

Pickup

Want to pick up your package for free?
Walmart offers free pickup for most orders placed online - for many items as soon as today! Tell us where you are and we'll show you which Walmart stores and partner locations near you are available for package pickup.
Faster shipping options available at checkout
Pickup not available  
Check out these related products

About this item

Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.
SIGNATURES OF LIFE

About this item

Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.

SIGNATURES OF LIFE

Informative and fascinating, this book delves into the topic of extraterrestrial life in a thought-provoking yet scientifically responsible way. Are we alone in the universe, or is life a universal phenomenon? For fifty years, astronomers in SETI (Search for Extraterrestrial Intelligence) have scanned the universe for intelligent signals, but with no success. In this intriguing book, Edward Ashpole explains the probable reasons for this and discusses other avenues of investigation more in line with the nature of science and technology. The author examines the problems inherent in scanning the universe for radio or optical signals from an alien intelligence. These include the difficulty of trying to communicate with another species possessing a completely unknown form of technology and the vast distances that alien communications would have to travel to reach us. This leads the author to other ways of finding evidence for extraterrestrial life, given that advanced civilizations would probably use artificial intelligence for interstellar travel. Our scientists now know how to detect the presence of life on a planet by observing its spectral lines, so more advanced alien researchers would have had ample time (about two billion years) to investigate these "signatures of life" coming from Earth. Hence, the author argues, alien space probes could exist within our own solar system; there might be evidence on the erosion-free Moon or on another moon or planet. In fact, a few scientists have scanned NASA's best photography, looking for evidence of such "alien archaeology." In a final chapter, the author urges an open-minded attitude on the part of scientists to all credible sources of information, along with the use of the scientific method to test various hypotheses and weed out the fantasy factor, which so often interferes with serious attempts to find hard evidence of extraterrestrial intelligence.

Specifications

Number of Pages: 227
Original Languages: English
Author: Ashpole, Edward
Book Format: Hardcover
Publisher: Random House Inc
ISBN-13: 9781616146689
Assembled Product Dimensions (L x W x H): 6.50 x 9.50 x 0.75 Inches
ISBN-10: 1616146680
Show

Customer Reviews

Be the first to review this item. Share your rating and review so that other customers can decide if this is the right item for them.

Customer Q&A

Back
Questions & Answers 0 questions

Ask a question

If you would like to share feedback with us about pricing, delivery or other customer service issues, please contact customer service directly.


Q&A tips and guidelines

Q&A Exchange Guidelines

When writing your question or answer, please follow these guidelines:

  • Do: Make sure your question is directly related to the product
  • Do: Be specific and provide as many details as possible
  • Do: Include the model number (if applicable)
  • Do: Write your question in English
  • Do Not: Include personal information (such as your full name)
  • All submitted questions and answers are subject to the terms set forth in our Terms and Conditions

We reserve the right not to post your question or answer if it contains any of the following:

  • Any information not related to the actual merchandise or topic
  • Obscenities, discriminatory language or other language not suitable for a public forum
  • Advertisements or “spam” content
  • Email addresses, physical addresses or other forms of contact information
  • Critical or spiteful comments on other questions or answers posted on the page or their authors
  • Any imagery that demonstrates incorrect use of the merchandise
  • Anything that Walmart deems to be inappropriate, at Walmart's discretion

Provide as many details as possible, including the model number (if applicable).

Remember: Don’t include personal information (such as your full name).


Preview Question

Thank you.

Questions will be checked against our question guidelines and posted within five to seven business days.

Consider these popular products

Policies & Plans

See any care plans, options and policies that may be associated with this product.

Gifting plans

The following available options may be selected during checkout:
Gift message: Add a personal note that we'll include with your gift.
Gift receipt: When you add other gift options, we'll include a receipt that keeps the price a secret but makes it easy to exchange or return an item.

Pricing policy

About our prices
We’re committed to providing low prices every day, on everything. So if you find a current lower price from an online retailer on an identical, in-stock product, tell us and we’ll match it. See more details at Online Price Match.

Returns

Returns are easy at Walmart
Not happy with a purchase? No problem. We've made returning items as easy as possible. And, most purchases can be returned for free. Learn more about our Returns Policy.