This blog post discusses a new article that my colleagues and I recently published in the journal, Astrobiology. Those with access to this journal can find the article here. Microscopic iron pyrite crystals preserved in an ancient gypsum vein — a new target in the search for life on Mars? Life on Earth is not limited … Continue reading New paper: could we find life’s fingerprints in mineral veins on Mars?
Some naturally occurring iron-mineral filaments. Fossil microbes? (c) The author. For billions of years, microbes like bacteria have quietly transformed the Earth. They have re-routed the flow of nutrients around our planet, infused the atmosphere with oxygen, and built the biosphere from the bottom up. It is hard to overstate the palaeontological importance of “simple” … Continue reading New paper: The trouble with tubules
Fossils provide our most decisive evidence for testing hypotheses about the abundance, diversity, and evolution of life on Earth over the past three-and-a-half billion years. They are also our best hope for answering one of the most compelling questions in science: was there ever life on Mars?