🧬 Without Jupiter, no life on Earth?

An unexpected collaboration between the Sun and Jupiter may explain the emergence of the essential elements for life on Earth. According to a recent study, asteroids from the inner region of the Solar System brought phosphorus and nitrogen to our planet – but this transport would not have been possible without the influence of the largest planet in the neighborhood.

Scientists have long sought to understand where the chemical components of life on Earth come from. To answer this question, the team of Rajdeep Dasgupta, a planetary scientist at Rice University, combined laboratory experiments and computer simulations. Their goal: to trace the journey of phosphorus and nitrogen, two essential elements for building amino acids and DNA.


Their work showed that Earth today has a phosphorus-to-nitrogen ratio identical to that of small rocky bodies formed between Jupiter and the Sun, about 4.3 to 4.2 million years ago. These second-generation planetesimals were likely captured by Earth's gravity during the formation of our planet.

Jupiter played a decisive role in this process. The gas giant formed before Earth, and its immense gravitational influence blocked the escape of materials toward the outer Solar System. Without Jupiter, a large portion of phosphorus and nitrogen would have been lost to deep space.

Thanks to Jupiter's presence, planetesimals in the inner region retained a high ratio of phosphorus to nitrogen. These blocks were later hurled toward Earth by collisions or encounters with other objects. This is how our planet received the essential ingredients for life.

This discovery raises a fundamental question for the search for life elsewhere in the universe: can habitable worlds form without a giant planet like Jupiter to retain volatile elements? Dasgupta's team published their results in the journal Science Advances.