Existence of Remanent Crustal Magnetization on Venus

Ascertain whether Venus’s crust retains remanent magnetization, indicating preserved past magnetic fields within surface rocks.

Background

Venus appears to lack a contemporary intrinsic magnetic field, which has implications for atmospheric escape and surface radiation environments. However, crustal rocks can preserve remanent magnetization that records the presence of an ancient dynamo.

Determining whether any remanent magnetism is preserved in Venus’s crust would constrain the planet’s magnetic history and inform models of atmospheric evolution and interior dynamics.