In quest of the coldest possible antihydrogen

Currently, one of the major goals in ultracold science is to cool antihydrogen atoms to as close to absolute zero as possible. Ultracold antihydrogen would pave the way toward ultraprecise antimatter experiments that could help answer some of the most perplexing questions about antimatter. For example, how does gravity act on antimatter? Why don't we see any antimatter in the universe? And could it be possible to create antiatoms of all of the elements from the periodic table in the lab?