Solar Minimum is Coming
High up in the clear blue noontime sky, the sun appears to be much the same day-in, day-out, year after year.But astronomers have long known that this is not true.…
Implementing the NSS Vision
Exciting News! Our Sacramento L5 Society has an article published in the National Space Society Magazine! Implementing the NSS Vision We, a consensus of the members of the Sacramento L-5…
Oberth effect
In astronautics, a powered flyby, or Oberth maneuver, is a maneuver in which a spacecraft falls into a gravitational well, and then accelerates when its fall reaches maximum speed. The…
Tsiolkovsky rocket equation
The Tsiolkovsky rocket equation, or ideal rocket equation, describes the motion of vehicles that follow the basic principle of a rocket: a device that can apply acceleration to itself (a…
IDL TIFF file
It is the business of the future to be dangerous…
It is the business of the future to be dangerous; and it is among the merits of science that it equips the future for its duties. — Alfred North Whitehead…
Ed Kulis Visits the Kennedy Space Center
Fantastic trip! Here's some of the surprises: The VAB Vehicle Assembly Building - you can't tell how large it is. I've heard the NASA wanted Life Magazine photographers to photograph…
Starship Century by James Benford and Gregory Benford
Good Reading!Starship Century: Toward the Grandest HorizonEdited by James Benford and Gregory BenfordStarship Century is a ground‐breaking anthology of science and science fiction based on findings and discussions of the 100‐Year Starship…