About me, Edwin Ethridge, Ph. D.

After a 30+ year career as a NASA materials scientist, I retired to pursue the commercial development of space resources. Through one of my research adventures at NASA, we developed methods for extracting water (and other volatiles) from the lunar poles, asteroids and Mars. I consider myself a self-appointed evangelist for the commercial exploitation of space water. Water extracted from the moon (and other celestial bodies) could be used for rocket propellant, or even for human habitation in space.

About this site

My objective is to promote space exploration through commercial utilization of space resources – “living off the land”. As an evangelist, my goal is to team with others with similar dreams. By writing about these topics, I hope to further disseminate knowledge to the community.

Why am I passionate about space resource extraction?

  • Utilization of water and CO2 from Mars for return propellant could reduce the costs of a Mars mission by an order of magnitude.
  • Extraction and utilization of lunar water for in space propellant will stimulate the development of cis-lunar space into sustainable space operations. Using reusable spacecraft in space with lunar derived propellant, space flight would become analogous to the Transcontinental Railroad of the 19th century.
  • Using our water extraction methods that do not require excavation, the mass of processing equipment can be greatly reduced, greatly reducing the costs of lunar mining operations.

About ‘Earthrise’

‘Earthrise’ is the iconic photograph that you see above and on other pages on my site.

The story of the photograph, from NASA:

Apollo 8, the first manned mission to the moon, entered lunar orbit on Christmas Eve, Dec. 24, 1968. That evening, the astronauts-Commander Frank Borman, Command Module Pilot Jim Lovell, and Lunar Module Pilot William Anders-held a live broadcast from lunar orbit, in which they showed pictures of the Earth and moon as seen from their spacecraft. Said Lovell, “The vast loneliness is awe-inspiring and it makes you realize just what you have back there on Earth.” They ended the broadcast with the crew taking turns reading from the book of Genesis.

The story of the photograph, from me:

On that Christmas Eve, I remember being glued to the television set as the astronauts entered into orbit. A few weeks later, my uncle mailed me a copy of the photograph. It has been on my desk ever since.

More information about ‘Earthrise’:

About other images on this site

All images on this site, unless otherwise noted, are property of NASA.