News about the explorer's adventures spread faster, news reached more people, more people could get interested in exploring, thus increasing the number of explorers in the long run
Explanation:
The printing press allowed the newspaper to reach every corner of a country. When people learned that there was great profit from exploring the new world, they got interested and more people were enthusiastic to travel across the sea, to claim new lands, settlements, discover treasures, and so on. As more explorations took place, more land was easily covered.
