The exploration of other worlds in our solar system and beyond is a major focus for scientists and researchers in space science and astronomy. In our own solar system, robotic missions have been sent to study all of the planets and many moons, as well as other objects like asteroids and comets. These missions have provided a wealth of information about planetary formation, geology, and potential for life. Technologies like telescopes, spectrometers, radar, and drills have been critical in studying these worlds. In addition, observations of exoplanets using ground-based and space-based telescopes have revealed a wide variety of exoplanet types and compositions, including some that may have conditions suitable for life. The search for life beyond Earth is a major goal of many space agencies around the world, and future missions are being planned to explore other worlds in more detail.