Timber Wind: America’s Return to Nuclear Thermal Rockets

 Hello, and welcome to Beyond NERVA! Today, we’re continuing to look at the pebble bed nuclear thermal rocket (check out the most recent blog post on the origins of the PBR nuclear thermal rocket here)! Sorry it took so long to get this out… between the huge amount of time it took just to find […]

Pebblebed NTRs: Solid Fuel, but Different

Hello, and welcome back to Beyond NERVA! Today, we’re going to take a break from the closed cycle gas core nuclear thermal rocket (which I’ve been working on constantly since mid-January) to look at one of the most popular designs in modern NTR history: the pebblebed reactor! This I should have covered between solid and […]

Fluid Fueled NTRs: A Brief Introduction

 Hello, and welcome back to Beyond NERVA! This is actually about the 6th blog post I’ve started, and then split up when they ran more than 20 pages long, in the last month, and more explanatory material was needed before I discussed the concepts I was trying to discuss (this blog post has also been […]

Topaz International part II: The Transition to Collaboration

Hello, and welcome back to Beyond NERVA! Before we begin, I would like to announce that our Patreon page, at https://www.patreon.com/beyondnerva, is live! This blog consumes a considerable amount of my time, and being able to pay my bills is of critical importance to me. If you are able to support me, please consider doing […]

Topaz International part 1: ENISY, the Soviet Years

Hello, and welcome back to Beyond NERVA! Today, we’re going to return to our discussion of fission power plants, and look at a program that was unique in the history of astronuclear engineering: a Soviet-designed and -built reactor design that was purchased and mostly flight-qualified by the US for an American lunar base. This was […]

History of US Astronuclear Reactors part 1: SNAP-2 and 10A

Hello, and welcome to Beyond NERVA! Today we’re going to look at the program that birthed the first astronuclear reactor to go into orbit, although the extent of the program far exceeds the flight record of a single launch. Before we get into that, I have a minor administrative announcement that will develop into major […]

Electric Propulsion Part 2: Electrostatic Propulsion

Hello, and welcome back to Beyond NERVA! Today, we finish our look at electric propulsion systems by looking at electrostatic propulsion. This is easily the most common form of in-space electric propulsion system, and as we saw in our History of Electric Propulsion post, it’s also the first that was developed. I apologize about how […]

NTR Hot Fire Testing 2: Modern Designs, New Plans for the LEU NTP

Hello, and welcome back to Beyond NERVA in the second part of our two-part series on ground testing NTRs. In part one, we examined the testing done at the National Defense Research Site in Nevada as part of Project Rover, and also a little bit of the zero power testing that was done at the […]

NTR Hot Fire Testing Part I: Rover and NERVA Testing

Hello, and welcome back to Beyond NERVA, where today we are looking at ground testing of nuclear rockets. This is the first of two posts on ground testing NTRs, focusing on the testing methods used during Project ROVER, including a look at the zero power testing and assembly tests carried out at Los Alamos Scientific […]