Pre-biotic organic matter from comets and asteroids.

Abstract in brief

• Comets and asteroids may have delivered significant amounts of organic matter to early Earth, potentially aiding the origin of life, but this organic material often breaks apart during high-impact impacts due to extreme temperatures.
• Only small fragments, like meteors weighing between 10^-12 and 10^6 grams, can deliver intact organic molecules without being destroyed during atmospheric entry.
• Estimates suggest that during periods of higher impact rates around 4 billion years ago, a substantial amount of organic carbon (about 20 g per cm^2) could have accumulated on Earth, possibly including complex biologically relevant compounds not formed through Earth's own abiotic processes.]