Did you realize that just like certain animals here on Earth, there are endangered elements, too? For example, we鈥檙e constantly losing helium, a gas that defies gravity and escapes our atmosphere into space. This incredible element is in high demand all over the globe. It鈥檚 also way too expensive to create in the laboratory,听and that鈥檚 bad news for more than just your birthday party! This week on听Reactions, we will explore innovations of the industrial era of helium, how much we have left and whether or not this element will go extinct.