Slow mantle flow built Antarctica gravity low over tens of millions of years
Los Angeles CA (SPX) Feb 18, 2026
Gravity feels stable in everyday life, but its strength varies across the surface of the planet, and it is weakest beneath Antarctica after accounting for Earth rotation. These subtle variations arise from differences in rock density deep inside the planet, and around Antarctica they create a pronounced gravity low that also affects regional sea level by allowing the nearby ocean surface to sit
Published by SpaceDaily on 02/19/2026