A cryogenic tank is a specialized container designed to store gases at extremely low temperatures, typically below -150 degrees Celsius. These tanks are essential for keeping substances like liquid nitrogen, liquid oxygen, and liquid helium in a liquid state, which allows for efficient storage and transportation. The construction of cryogenic tanks involves materials that can withstand the intense cold without becoming brittle. They are often used in various industries, including aerospace, medical, and research, where they play a crucial role in preserving samples and fueling rockets, such as those used by NASA and other space agencies.