Newly discovered worlds of microbes far beneath the ocean floor, inside old basaltic rocks, could point to a greater likelihood of life elsewhere in the universe. Featuring deep biosphere researchers Karen Lloyd, Barbara Sherwood Lollar, Virginia Edgcomb, Martin Fisk, Steve D’Hondt, William Orsi, Yohey Suzuki, Jason Sylvan, Tullis Onstott and Jennifer Biddle. Reprinted in The Atlantic.