Erik Asphaug - When the Earth Had Two Moons

Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky, a Science Book Talk & Signing

Erik Asphaug is an author, esteemed planetary geologist, and professor of planetary science. He will discuss and sign When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky ($28.99 Custom House), an astonishing exploration of planet formation and the origins of life. 

Fourteen billion years ago, the universe exploded and created galaxies and stars. Planetary bodies smashed into each other until solar systems emerged. Curiously, instead of being relatively similar in terms of composition, the planets in our solar system--and the comets, asteroids, satellites and rings--are bewitchingly distinct. So, too, the halves of our moon. In this book, Asphaug takes us on an exhilarating tour through the farthest reaches of time and our galaxy to find out why. Beautifully written and provocatively argued, When the Earth Had Two Moons is a profound inquiry into the nature of life here--and billions of miles from home.


ABOUT THE EVENT

This event is free and open to the public. End time may vary.

Can’t make it to the event? To request an autographed copy, please click on the "Add to Cart" button for the book and be sure to mention you'd like an autographed copy in comments portion of your order. 

Event date: 
Monday, November 18, 2019 - 7:00pm
Event address: 
Tattered Cover Aspen Grove
7301 South Santa Fe Drive
Littleton, CO 80120
When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky Cover Image
$28.99
ISBN: 9780062657923
Availability: Coming Soon - Available for Pre-Order Now
Published: Custom House - October 29th, 2019