Ben Weiss on the Mission to Psyche


Manage episode 325427139 series 3293313
著作 Oliver Strimpel の情報はPlayer FM及びコミュニティによって発見されました。著作権は出版社によって所持されます。そして、番組のオーディオは、その出版社のサーバから直接にストリーミングされます。Player FMで購読ボタンをタップし、更新できて、または他のポッドキャストアプリにフィードのURLを貼り付けます。

The asteroid Psyche is probably the most metal-rich body we have discovered. There are two, quite different, theories as to how it may have formed: Either it formed that way, or it originally had a more typical composition, but its rocky outer portion was blasted off during a major collision. To help determine which is most likely, NASA is sending a space probe there, to be launched on August 1, 2022. And if we can unravel the history of Psyche, we will also learn how other planets may have formed, since both the asteroids and the planets are thought to have been assembled from the same population of planetesimals – the small bodies that first formed out of the solar nebula. We might also learn about the Earth's own metallic core, since, according to the second theory, Psyche may be a naked core.

Ben Weiss is Deputy Principal Investigator and Magnetometry Investigation Lead on the Psyche mission. He is a Professor of Planetary Sciences at the Massachusetts Institute of Technology. His research focuses on the formation, evolution, and history of the terrestrial planets and small bodies. He is especially interested in paleomagnetism and geomagnetism. In the podcast, he explains the various formation scenarios for Psyche. He then describes the various instruments on board the spacecraft and what we will be able to infer from the measurements they will make when orbiting the asteroid.

64 つのエピソード