Understanding planet formation using microgravity experiments

摘要: In 2018, images were released of a planet being formed around the star PDS 70, offering tantalizing glimpse into how planets come being. However, many questions remain about dust evolves planets, and astrophysical observations are unable to provide all answers. It is therefore necessary perform experiments reveal key details and, avoid unwanted effects from Earth’s gravitational pull, it often such in microgravity platforms. This Review sketches current models formation describes needed test models. Present-day understanding has strongly been influenced by laboratory work under microgravity. discusses numerous on processes involved, onset sticking collisions erosion planetesimal surfaces.