ACE's instruments can give about one hour's notice of an impending geomagnetic storm from the Sun (right).
ACE orbits the L1 Libration point in a wide loop where the gravity between Earth and Sun is balanced.
ACE orbits the L1 Libration point in a wide loop where the gravity between Earth and Sun is balanced.
ACE orbits the Sun at the Lagrangian Point L1 between the Earth and the Sun.
Lagrangian points are where the gravitational forces acting between two objects cancel each other out and can be used by spacecraft to
hover.
The gravitational points are named for Italian mathematician Joseph Louis Lagrange (above).
