'Microlightning' in water droplets may have sparked life on Earth
Life may not have begun with a dramatic lightning strike into the ocean but from many smaller "microlightning" exchanges ...
Volcanic activity billions of years ago set the stage for Earth's oxygen-rich atmosphere, research suggests
It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers ...