Based on the insight that the oldest water was hot, which areas should future missions target to find remnants of that earliest wet era?

Answer

Areas rich in ancient igneous or hydrothermal minerals

Since the oldest water evidence points to hydrothermal origins within the crust, zones containing minerals formed during that initial hot phase are most likely to preserve chemical and biological remnants.

Based on the insight that the oldest water was hot, which areas should future missions target to find remnants of that earliest wet era?

#Videos

Ancient hot water on Mars points to habitable past - YouTube

Marsoldestwaterevidence