Onkohan antimaterialla vetävä vai hylkivä gravitaatio materian kanssa?
Cernin asiantuntijoiden näkemys:
How does the gravitational field act on antimatter?
It has not yet been directly established that antimatter and matter have the same coupling to the gravitational interaction.
There is at present no experiment which has the sensitivity to measure the effects of gravity on antimatter. Such an experiment requires extremely cold antihydrogen atoms, at a temperature close to absolute zero (< 1mK), and it is at present not possible to obtain antihydrogen atoms at such low temperatures. Several ideas are under discussion, however, so this question might be addressed in a few years time.