Scientific expeditions are organized journeys to collect information, samples, and observations for research. Teams travel to specific locations to study plants, animals, rocks, weather, oceans, or human societies. These expeditions often involve planning, equipment, and specialized knowledge. Scientists record and collect data during their work.

Scientific expeditions take place in many environments around the world, including forests, deserts, mountains, oceans, and polar regions. Teams may include biologists, geologists, astronomers, archaeologists, and other specialists. Some expeditions also involve sailors, guides, or support staff.

Scientific expeditions have taken place for centuries, especially from the 1700s onward. They continue today in many parts of the world. These journeys are part of how knowledge about Earth and its environments is gathered and recorded.