The latter. You bring the bugs and seeds and Mars provides the sunlight and water. Here's the paper: https://journals.plos.org/plosone/article?id=10.1371/journ

The latter. You bring the bugs and seeds and Mars provides the sunlight and water. Here's the paper: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0238606 https://journals.plos.org/plosone/article?id=10.1371/journal...