EARTH'S MYSTERIOUS, DEEP-DWELLING MICROBES WE'RE ONLY STARTING TO UNDERSTAND

Summary from the TLDR newsletter

This article looks into the history of the research into subterranean life and how it has changed the way scientists see life and the planet. Earth's crust is teeming with subterranean life that scientists are just starting to begin to understand. These microbes may closely resemble some of the earliest single-celled organisms that ever existed. They make up an estimated 10 to 20 percent of the biomass on Earth.