  Antinuclei can be produced in space either by collisions of high-energy
cosmic rays with the interstellar medium or from the annihilation of dark
matter particles stemming into standard model particles. High-energy hadronic
collisions at accelerators create a suitable environment for producing light
(anti)nuclei. Hence, studying the production of (anti)nuclei in pp collisions
at the LHC can provide crucial insights into the production mechanisms of
nuclear states in our Universe. Recent measurements of the production of
(anti)nuclei in and out of jets, and as a function of rapidity in pp collisions
at \mbox{$\sqrt{s}$ = 13 TeV} have been carried out with ALICE. The latter
allow for the extrapolation of the nuclear production models at forward
rapidity, region of interest for indirect searches of dark matter. Recent
results on the annihilation cross-section of antinuclei are also discussed in
the context of astrophysical measurements of cosmic ray flux. Such information
is essential to study the different sources of antinuclei in our Universe and
to interpret any future measurement of antinuclei in space.
