Cryogenics research involves the study of materials and processes at extremely low temperatures, typically below -150 degrees Celsius. This field explores how substances behave when cooled, which can lead to advancements in various technologies, including superconductors and cryopreservation. Researchers in cryogenics often work with liquid gases like helium and nitrogen to achieve these low temperatures. Applications of cryogenics include medical uses, such as preserving biological samples, and in the aerospace industry, where it helps in the development of rocket fuels and other materials that must withstand extreme conditions.