Dr. Marin and his group are creating some great simulations involving generation ships. I’ve been following the work for a while and you can learn more about the three major papers they’ve produced. The first paper uses a Monte-Carlo simulation to measure viability. The second paper uses the HERITAGE program developed for the first paper to calculate the minimum crew for a generation ship. The third paper uses the same program to calculate food production for three different methods of agriculture.

Dr. Frédéric Marin at the Astronomical Observatory of Strasbourg is doing some great research on the feasibility of Generation Ships. A generation ship is “a hypothetical type of interstellar ark starship that travels at sub-light speed.” He and his team have created a wide variety of research papers and projects, which includes developing their own Monte Carlo calculation program.

Mycelia consume their food externally, by secreting powerful enzymes that break down molecules. In other words, they “digest” whatever substrate, or surface, they’re growing on, converting it to nutrients and—depending on the substrate—edible mushrooms.

Proponents say it’s a natural, more benign, and potentially cheaper alternative to the “scrape and burn” approach to environmental clean-up, which involves digging up contaminated soil and incinerating it.

The problem with that traditional approach is that it can remove potentially fertile topsoil, says Theresa Halula, who teaches mushroom cultivation at Merritt College in Oakland, California. Mycoremediation, on the other hand, she says, can help clean up toxic sites while actually improving soil fertility.