Probes are instruments or devices used to gather information about a specific environment or object. They can be found in various fields, such as science, medicine, and space exploration. For example, a space probe is designed to travel beyond Earth to collect data about other planets, moons, or celestial bodies. In medicine, a medical probe is used to examine internal organs or tissues. These probes can help doctors diagnose conditions by providing images or samples. Overall, probes play a crucial role in expanding our knowledge and understanding of different areas in both research and practical applications.