Fire and water — could there be a more iconic dual symbol of the way our world, or its designer, saw us coming and carefully prepared the way?
“The origin of life is among the greatest open problems in science.”
Thanks to a unique cluster of properties, water is able to fulfill many roles essential to our living planet.
The authors argue that RNA molecules appeared in warm little ponds more than 4.17 billion years ago, transported by “meteorites and interplanetary dust particles.”
The Department of Health and Human Services has published a draft strategic plan for 2018-2022.