Title: 10 Lesser Known Factors that Support Life on Earth - Earthly Universe
Headings: 10 Lesser Known Factors that Support Life on Earth
10 Lesser Known Factors that Support Life on Earth
#1. The Moon
#2. Volcanic Eruptions
#3. Greenhouse Gasses
#4. Galactic Position
#5. Good Jupiter
#6. Molten Core
#7. Suitable Size
#8. Life-Giving Chemistry
#9. Energy
#10. Ancient Life

Content: #8. Life-Giving Chemistry
Pixabay
All life on Earth is composed of six fundamental elements: carbon, hydrogen, nitrogen, oxygen, phosphorus and sulphur, as well as trace amounts of various other elements. Many of the factors that support life on Earth are specific to the past and present ecosystems of our planet. In other words, alternative biochemistries, such as those that rely on chemicals other than water or those that use entirely different building blocks, would have a completely different set of requirements. Nonetheless, one universal rule of any form of biochemistry, hypothetical or otherwise, is that it can only come into being due to chemical reactions. No chemical reaction may occur if the right conditions aren’t in place first, and without the right chemical reactions, a planet’s surface will remain completely inert. Here on Earth, we exist only because conditions allowed chemistry to create crucial molecules, such as DNA and RNA. #9. Energy
NASA
The discovery of completely independent ecosystems that rely on deep-sea hydrothermal vents for sustenance make the subsurface ocean of Jupiter’s moon Europa one of the most promising places for extraterrestrial life.