Why did Marquette and Joliet sailed down part of the Mississippi exploring for?

Marquette and Joliet sailed down part of the Mississippi River in 1673 primarily to explore the region and seek a water route to the Pacific Ocean. They aimed to establish trade relations with Native American tribes and gather information about the geography and resources of the area. Their expedition also sought to spread Christianity among the indigenous peoples they encountered. Ultimately, their journey contributed to European knowledge of the Mississippi River and its significance for trade and exploration.