The atmosphere and hydrosphere The outer shell The interior The geomagnetic field and magnetosphere Development of Earth’s structure and composition References & Edit HistoryRelated Topics Images, Videos & Interactives For Students Earth summary
investigators are able to derive the diameter of the asteroid. Other remote-sensing techniques—for example, polarimetry, radar, and adaptive optics (techniques for minimizing the distorting effects of Earth’s atmosphere)—also are used, but they are limited to brighter, larger, or closer asteroids...