Laboratory Experiments to Understand Comets

TL;DR

Laboratory experiments are crucial for understanding comet formation, composition, and evolution, providing essential data to interpret observations, inform models, and guide future space missions.

Contribution

This paper reviews past and ongoing laboratory experiments that simulate cometary materials and processes, highlighting their role in advancing comet science.

Findings

Laboratory experiments help interpret comet observations.

Experiments simulate formation and transformation of comet materials.

Future experiments will address unresolved questions in comet science.

Abstract

In order to understand the origin and evolution of comets, one must decipher the processes that formed and processed cometary ice and dust. Cometary materials have diverse physical and chemical properties and are mixed in various ways. Laboratory experiments are capable of producing simple to complex analogues of comet-like materials, measuring their properties, and simulating the processes by which their compositions and structures may evolve. The results of laboratory experiments are essential for the interpretations of comet observations and complement theoretical models. They are also necessary for planning future missions to comets. This chapter presents an overview of past and ongoing laboratory experiments exploring how comets were formed and transformed, from the nucleus interior and surface, to the coma. Throughout these sections, the pending questions are highlighted, and the perspectives and prospects for future experiments are discussed.