What are the two primary, interconnected factors challenging stable planetary systems in globular clusters?

Answer

Extreme stellar density and vast survival timescale.

The core issues preventing long-lived planetary systems are the extreme density of stars, causing gravitational chaos, and the need for these systems to survive for the entire ancient age of the cluster.

What are the two primary, interconnected factors challenging stable planetary systems in globular clusters?
astronomyplanetsstarsexoplanetsstar formationastrophysicsstellar dynamicsglobular clustersGlobular cluster