Burping is a normal part of everyday life. Burps happen when air from your stomach travels back up your food tube – called an esophagus – to your mouth. Air gets into your stomach during activities ...

Was Einstein smarter than a sixth-grader? When it came to black holes, maybe not. For much of the 20th century, astronomers and physicists were unsure about whether black holes — which were predicted ...

Sulfur burps are burps that smell like rotten eggs and can be alarming when they happen frequently. These burps are caused by the production of hydrogen sulfide gas in the digestive system, often due ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Why does burping make noise? – Henry E., age 8, ...