  We report the first lattice QCD study of the heavy dibaryons in which all six
quarks have the bottom (beauty) flavor. Performing a state-of-the-art lattice
QCD calculation we find clear evidence for a deeply bound
$\Omega_{bbb}$-$\Omega_{bbb}$ dibaryon in the $^1S_0$ channel, as a pole
singularity in the $S$-wave $\Omega_{bbb}$-$\Omega_{bbb}$ scattering amplitude
with a binding energy $-81(_{-16}^{+14})$ MeV. With such a deep binding,
Coulomb repulsion serves only as a perturbation on the ground state wave
function of the parameterized strong potential and may shift the strong binding
only by a few percent. Considering the scalar channel to be the most bound for
single flavored dibaryons, we conclude this state is the heaviest possible most
deeply bound dibaryon in the visible universe.
