We Mapped 100% of Mars.But 71% of Our Own Ocean Is Still Unknown.

🎥 **National Geographic Video** 📌 **We Mapped 100% of Mars.But 71% of Our Own Ocean Is Still Unknown.** 📺 Channel: Whyy 📖 We Mapped 100% of Mars. But 71% of Our Own Ocean Is Still Unknown." In January 1960, two men descended nearly seven ... 🔗 Watch full video: https://www.youtube.com/watch?v=ydzN4aOMkNo Stay connected with Tolee for daily video updates across NASA, Discovery, National Geographic, Science, Education, Documentary, History, Space, Animals, Technology, and Kids Education!