Posted on Sunday, October 28, 2012
By Kadri

Image Credit: Kadri Tinn

What If the Earth Had Two Moons? by Neil F. Comins

Finished reading on October 28

Rating 7/10

Having come across a reference to another Comins' book, “What If the Moon Didn't Exist?” and not having found one in my vicinity, I picked up this one instead. It took me a lot of time to actually start reading it, although the last 200 pages or so went past pretty quickly on a cloudy cold night. Finishing it at 2 am was a relief though, because although the concept of the book is great, it requires a bit more brain activity and thought than some other popular science books.

There are 10 scenarios of slightly different solar systems.

My favourite was one forming 15 billion years from now, not because it would be particularly exciting to live at that time, but because with each story the author also explains some of the underlying astronomy and physics, and an Earth-like planet forming in a different galaxy that much later required some explanations of cosmology and difficulties in interstellar travel, so that was awesome. If you'd want to know some of the reasons why it's difficult to colonize other worlds, read it!

And the slight or staggering differences in each world don't necessarily make you want to take up space-travelling to any of those imaginary places. So there's a down-to-earth approach to it.

I think this book would be a good read for anyone who hasn't already been saturated by reading too many popular science books dealing with astronomy.

Labels: ,

Skywatch    News    Pictures    Videos    Events    Northern Lights    NASA    ESA    ISS    Jupiter    Curiosity    Mars    Moon    Lyrids    Super Moon    Venus Transit    Book Review    Games   
Upcoming Events
Submit your Photos
Have you taken interesting photo of the night sky and would like to share it with us?
Send in your photos to below email, with as much details possible relating to the photo. has created this privacy statement in order to demonstrate our firm commitment to privacy.

Information we collect:
We may log IP addresses and/or drop cookies to prevent abuse of our website and/or to enhance services.

Third Party Advertising:
Ads appearing on this website, are delivered to you by Google Adsense and other third-party advertising companies.

Information about your visit to this site, such as number of times you have viewed an ad (but not your name, address, or other personal information), is used to serve ads to you on this site. These third parties and or may be placing and reading cookies on your browser to collect information, in the course of ads being served.

You may manage your cookies via your web browser and if you would like more information about this practice and to know your choices about not having this information used by these companies, please click here

Google, as a third party vendor, uses cookies to serve ads on your site.

Google's use of the DART cookie enables it to serve ads to your users based on their visit to your sites and other sites on the Internet.

Users may opt out of the use of the DART cookie by visiting the Google ad and content network privacy policy.

Advertisers and Third Party Cookies :
In the course of serving advertisements to this site, our third-party ad server, Google Adsense, intergi, or individual advertisers may place or recognize a unique cookie on your browser. Cookies received with banner ads are collected by our ad company, and we do not have access to this information.

External Links: contains links to other sites. is not responsible for the privacy practices or the content of such Web sites.