An international collaboration found the fossils of methane-cycling microbes from 3.42 billion years ago, providing new insights on the potential habitability, or ability to sustain life, of early Earth.
Recent reports of Mars methane detections have fascinated both scientists and non-scientists alike. On Earth, a substantial amount of methane is generated by bacteria that help most livestock digest plants.
Scientists recently found bacteria in sinks are the result of handwashing. Specifically, they discovered that this practice, that has shaped communities of microbes that stay and grow in domestic sinks' plumbing.