Non-contact research refers to studies or experiments that do not require physical contact between the researcher or equipment and the subjects or objects being studied. This can include techniques such as remote sensing, imaging, or other forms of data collection that do not involve direct physical interaction. Non-contact research methods are often used in fields such as environmental science, astronomy, and medical imaging, where it may be impractical or unsafe to make direct contact with the subjects of study. These methods allow researchers to gather data and make observations without disturbing or altering the subjects in any way.