Image Details
Caption: Figure 5.
Thermometer shows the temperatures at which various volatile species are stable over geologic time defined as ices that would be lost to sublimation at a rate of less than 1 kg m–2 per billion years. To the left, the temperature ranges of various targets are noted, including the lunar poles, Mercury’s poles, Mars, icy satellites, and Kuiper Belt objects. Graphic courtesy James T. Keane and NASEM Decadal Survey (2022).
© 2026. The Author(s). Published by the American Astronomical Society.