Evolutionary scientists announced the discovery of what they claim are the oldest green-algae fossils—which look remarkably like modern, living seaweeds. The millimeter-sized, multicellular plant fossils were found in China in rocks claimed to be over one billion years old.¹

Scientists have reported the presence of methane-producing microbes living deep beneath the Siljan impact crater in Sweden.¹ Although the researchers stopped short of claiming the impact somehow brought the microbes to Earth, they do assert that impacts can create favorable habitats for colonization.