Many claim the Cambrian explosion was triggered by a sudden global increase in oxygen levels.
The serendipity is deafening.
Our planet’s view of the sun is critical to life, obviously, but equally critical is that it’s a shielded view.
Remember CHONPS — the acronym you learned in high school to remember the elements most important for life?
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.”