Potential Explanation for Evolution of Smaller Planets in New Sandwiched Planet Formation Theory

A groundbreaking new theory proposed by scientists at the University of Warwick challenges the established notion of how planets form in protoplanetary discs. According to the traditional protoplanetary theory, larger gas giants like Saturn and Jupiter are formed first, far away from their host star, due to an abundance of gaseous raw material. On the other hand, smaller and rocky planets such as Venus are believed to form closer to the Sun.

However, the University of Warwick researchers present a fresh perspective, suggesting that planet formation occurs within the rings and gaps of protoplanetary discs. These rings act as a breeding ground for the creation of smaller, middle planets when located between two larger planets in the disc. The flow of dust is restricted between the giants, but if somehow the dust manages to escape, it results in the birth of a smaller planet.

Farzana Meru, an associate professor at the University of Warwick’s physics department, explains, “The gaps are where we expect planets to be, and we know from theory work that planets cause dust rings to form just exterior to them.” The researchers claim to have discovered actual evidence supporting the existence of these sandwiched planets within planetary architecture.

Furthermore, the researchers point to examples in our own solar system that align with the sandwiched formation theory. Both Mars and Uranus are surrounded by larger planets, suggesting that they could have been formed through this process. While more research is necessary, this breakthrough opens up new possibilities for understanding the cosmic processes unfolding right in our very own celestial neighborhood.