Magnetic dipole moments on rocky exoplanets

Evidence from the Solar system suggests that, unlike Venus and Mars, the presence of a strong magnetic dipole moment on Earth has helped maintain liquid water on its surface....太阳系的观测证据表明：与金星、火星不同，地球具备较强的磁偶极矩（magnetic dipole moment），这一特性帮助其表面维持了液态水的存在。