We Can Thank Deep-Space Asteroids for Helping Start Life on Earth
Earth's early environment hindered the development of life, requiring the import of essential elements from space.
Life on Earth may have started when lightning hit volcano eruptions
Lightning from volcanic eruptions in ancient times emitted extreme levels of nitrogen, which triggered the earliest lifeforms.
Nitrogen combined with lightning strikes reacts with oxygen and produces nitrogen oxide, creating an environment suitable for life to develop and sustain.