TIL More than 80 percent of the ocean has never been mapped, explored, or even seen by humans and as a result, we know more about the surface of Mars than Earth education.nationalgeographic.org Submitted by [deleted] t3_z6p9uy on November 28, 2022 at 6:42 AM in todayilearned 143 comments 2,115
[deleted] OP t1_iy311fz wrote on November 28, 2022 at 10:48 AM Reply to comment by Nothammer in TIL More than 80 percent of the ocean has never been mapped, explored, or even seen by humans and as a result, we know more about the surface of Mars than Earth by [deleted] [deleted] Permalink Parent 1
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