  Anisotropic neutrino emission from a core-collapse supernova (CCSN) causes a
permanent change in the local space-time metric, called the gravitational wave
(GW) memory. Long considered unobservable, this effect will be detectable in
the near future, at deci-Hertz GW interferometers. I will present a novel idea,
where observations of the neutrino GW memory from CCSNe will enable
time-triggered searches of supernova neutrinos at megaton (Mt) scale detectors,
which will open a new avenue to studying supernova neutrinos.
