  Bose-Einstein condensates are a promising platform for optical quantum
memories, but suffer from several decoherence mechanisms, leading to short
memory lifetimes. While some of these decoherence effects can be mitigated by
conventional methods, density dependent atom-atom collisions ultimately set the
upper limit of quantum memory lifetime to s-timescales in trapped Bose-Einstein
condensates. We propose a new quantum memory technique that utilizes
microgravity as a resource to minimize such density-dependent effects. We show
that by using optical atom lenses to collimate and refocus the freely expanding
atomic ensembles, in an ideal environment, the expected memory lifetime is only
limited by the quality of the background vacuum. We anticipate that this method
can be experimentally demonstrated in Earth-bound microgravity platforms or
space missions, eventually leading to storage times of minutes and
unprecedented time-bandwidth products of {$10^{10}$}
