The Nuclear Salt Water Rocket is a rocket engine concept that uses a rapid nuclear reaction in a Uranium salt dissolved in water to create a high thrust, high efficiency engine which eclipses the performance of any rocket engine ever designed. It's a concept originally presented by Robert Zubrin, which is appealing because it looks more scientifically plausable than many other futuristic propulsion concepts. It's also scary on so many levels, using a propellent that has to be stabilized by specially designed tanks, and relies on managing a small nuclear explosion with power outputs of hundreds of gigawatts. The original paper can be read here: https://arc.aiaa.org/doi/abs/10.2514/6.1990-2371 And Atomic Rockets has a section on the device: http://www.projectrho.com/public_html/rocket/enginelist2.php#nswr The Kerbal mod version is available as part of Nertea's "Far Future Technologies": https://forum.kerbalspaceprogram.com/index.php?/topic/199070-111x-far-future-technologies-jan-7/ ... https://www.youtube.com/watch?v=cvZjhWE-3zM

Sure they could, but it would require vastly more work. A Super Earth is a class of small terrestrial exoplanet which is 25%-100% larger in diameter than Earth. Many of these have been discovered and some are in the habitable zone of their parent starts. Which lead people to ask whether a civilization developing on these worlds might be trapped and unable to develop a space program Using Universe Sandbox I show a few example Super Earths and then, in Kerbal Space Program we fly a massive rocket that can just escape. ... https://www.youtube.com/watch?v=amjuJJwI3iM

With our kerbals on the way to Duna they have also become the first kerbals to enter interplanetary space and as such we are rewarded with science! Just enough science to unlock the new RAPIER engine and attempt to design a spaceplane capable to taking a small payload into orbit and returning to base. Modlist being maintained by some nice people on reddit. http://www.reddit.com/r/KerbalSpaceProgram/comments/1upc6g/scott_manleys_interstellar_quest_modlist/ ... https://www.youtube.com/watch?v=fNSXAHLX0Uk

Designing something that looks and flies like the Space Shuttle is very hard given the stock parts in KSP, many people make the mistake of not aligning engines through the center of mass, and not accommodating the change in location of the center of mass as fuel is burned. The real space shuttle used engines with a 20 degree gimbal range to account for this, and there are mods that support this. I'll take a look at the existing shuttle mods in another video. ... https://www.youtube.com/watch?v=otv7lJmLJtQ