The Nuclear Lightbulb – A Brief Introduction

Hello, and welcome back to Beyond NERVA! Really quickly, I apologize that I haven’t published more recently. Between moving to a different state, job hunting, and the challenges we’re all facing with the current medical situation worldwide, this post is coming out later than I was hoping. I have been continuing to work in the […]

The Bubbler: Liquid NTRs Without Barriers

Hello, and welcome back to Beyond NERVA! Today, we continue our look at liquid fueled nuclear thermal rockets (LNTRs), with a deep dive into the first of the two main types: what I call the bubbler LNTR. This potentially attractive form of advanced NTR is a design that has been largely forgotten in the history […]

Liquid Fueled NTRs: An Introduction

Hello, and welcome back to Beyond NERVA! Today we continue our look into advanced NTR fuel types, by diving into an extended look at one of the least covered design types in this field: the liquid fueled NTR (LNTR). This is a complex field, with many challenges unique to the phase state of the fuel, […]

Dragonfly: NASA’s Newest Nuclear Powered Spacecraft

Hello, and welcome back to Beyond NERVA! The blog itself has been quiet for a while for a number of reasons, but the website continues to grow! I’ve added extensive sections on radioisotope power sources and many details of their operation. There are now pages for radioisotope power sources in general (which you can find […]

TAGS-85: Power Conversion System for the Outer Planets and Beyond!

Hello, and welcome back to Beyond NERVA! Today, we take a break from the Topaz International Program to cover a subject that we haven’t touched on at Beyond NERVA yet, and sadly the inspiration is due to the death of one of the true luminaries of astronuclear engineering, Dr. Emanuel “Emil” Skrabek, who passed on […]

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 […]

SNAP-50: The Last of the SNAP Reactors

Hello, and welcome to Beyond NERVA, for our first blog post of the year! Today, we reach the end of the reactor portion of the SNAP program. A combination of the holidays and personal circumstances prevented me from finishing this post as early as I would have liked to, but it’s finally here! Check the […]

US Astro-nuclear History part 2: SNAP-8, NASA’s Space Station Power Supply

Hello, and welcome back to Beyond NERVA! As some of you may have noticed, the website has moved! Yes, we’re now at beyondnerva.com! I’m working on updating the webpage, and am getting the pieces together for a major website redesign (still a ways off, but lots of the pieces are starting to fall into place) […]

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 […]