Winters are cool and damp, and the lowest average minimum temperature is around in January.

Bangladesh has a hot, wet, and humid tropical climate with temperatures rising unto 45 degrees Celsius (113ºF) in the summer.

The mission's scientific goals are to study and compare these two very different bodies, one primitive and wet, the other differentiated and dry, to understand the conditions and processes in place at the beginning of the formation of the solar system.