In The 21st Century, Earth Is Still Explorers’ Paradise 0 (0)

Reading Time: 3 minutes According to Britannica, most of our planet’s continental surface has been explored, and some remaining difficult to access places got mapped by aircrafts and satellites. So then, does it mean there are no frontiers left? Let’s not despair yet: some say that over 60% of Earth is still unknown – if we count in oceans and the Deep Earth in it.