article_snippet.sent: But a group of scientists from the University of Alberta in Canada claim to have settled the debate once and for all.
article_snippet.sent: For now remains unanswered.
article_snippet.sent: Their study confirmed the first scientific study on the topic, which was conducted in 1947, was correct by suggesting that the sound came from the formation of a gas cavity inside the joint.
article_snippet.sent: Their study also dismissed research from 1971, which disputed the study and stated that the collapse of a bubble inside the joint triggered the pop.