A voyage to Uranus Published on May 3, 2022May 2, 2022 by fivecolorssandt@icloud.com Space is big It takes a long time to get to the outer planets. Read More
Degrees of difficulty Published on November 24, 2020November 23, 2020 by fivecolorssandt@icloud.com Impossible, inevitable and in between Some actions in science fiction are much more difficult than others. Read More
On orbits Published on May 12, 2020May 10, 2020 by fivecolorssandt@icloud.com Curves in space Things are different out there. Read More