Earth's habitability Origin Of Life

At Live Science: 3.5 billion-year-old rock structures are one of the oldest signs of life on Earth

Stephanie Pappas writes: Fossils called stromatolites from Western Australia were created by microbes 3.48 billion years ago. Layered rocks in Western Australia are some of Earth’s earliest known life, according to a new study.  The fossils in question are stromatolites, layered rocks that are formed by the excretions of photosynthetic microbes. The oldest stromatolites that Read More…