演講資訊

摘要：

The planetary science community has been fortunate to experience many fantastic missions to asteroids and comets in the last decade: from Rosetta (ESA) reaching and landing on a comet, to Hayabusa 2 (JAXA) and OSIRIS-REX (NASA) collecting samples from Near-Earth asteroids, and many other projects. Our knowledge of small bodies has improved tremendously, and so have our questions. The more we learn about those objects, the more we discover that their structure, composition, history, are more complex than we thought. Their stories are entangled in many ways with the formation and evolution of our Solar System: asteroids and comets contain in their core elements answers to fundamental questions about our planets came to be. Asteroids and comets may be “small bodies” but their study will bring constraints to many “big questions” in our field: from the early ages of planet formation in Solar and Extrasolar systems, to planetary evolution and life on our Earth.

The next decade is on track to be even more exciting: almost every space agency has selected or is planning a mission to a comet or an asteroid, if not both ! In this presentation I will give an overview of some of the most fundamental open questions in our field and how the next generation of spacecrafts will address those. I will give a short summary of the upcoming missions then present in more details two specific projects: AIDA (ESA/NASA) and Comet Interceptor (ESA/JAXA), which will provide unique opportunities for small bodies science in the coming years.

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