Affordable Moon Base
Solar Energy Will Power the Moon The Sacramento L5 Society has completed an analysis of solar energy means for powering a permanent Moon base through the lunar night. It appears…
Activities between the Earth and the Moon
Apollo 20: Mission to Tycho – Orbiter Space Flight Simulator
Apollo 20 was to liftoff from Kennedy Space Center on July 24, 1974 to the most adventurous site visited yet by Apollo astronauts; the rim of crater Tycho. Tycho is…
Missions we Lost When Apollo was Cancelled
Long before Apollo landed on the Moon, NASA leadership was looking at some lofty plans for Apollo hardware after the Moon. Want to know more about the planetary side? There's…
The Archaeology Of The Space Age
We've been space now 55 years. Time to think about preserving history. Check out Lisa's work.Senior author of The Final Mission: Preserving NASA’s Apollo SitesContributing author to Archaeology and Heritage of the…
What is a Lagrange Point?
What are they?Our Sacramento L5 Society is named for the Lagrange Point EML5. Just like the illustration above for the Sun Earth Lagrange Points the Earth and the Moon have…
The Spaceport by Roger Arnold and Donald Kingsbury
Part 1: An Alternate Means of Delivering Payload to OrbitPart 2: Building Energy Cheap Space Transportation - Suitably used, an orbiting spaceport could far more than pay for itself.For more,…
How To Blog to the SacL5 Site
The SacramentoL5Society uses Word Press and the editor plugin called Elementor. Elementor provides the tools to buld a website that is very simple to update and maintain. This video shows…
Hubble Telescope Builder – Bill Johnston
Hubble Telescope 30th anniversary interview with Bill Johnston https://youtu.be/5pt5QkTD-Yk Air Force Captain William "Bill" Johnston worked for over 30 years for Lockheed and Lockheed/Martin, and towards the end of his…
No Stopping in Orbit by Paul Turner
There is a common misperception that if you get rocket up high enough, say several hundred miles above the ground, there will be no gravity to pull it back down…
Urgent Need for US Space Force
In June 2018, President Trump directed the Department of Defense to “begin the process necessary to establish a space force as the sixth branch of the armed forces.” The reason…