Jscottpilgrim t1_iy4rir7 wrote
Reply to comment by IBeTrippin 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]
Are you talking about the surface or the floor?
IBeTrippin t1_iy50lwk wrote
Both. The linked article is pop-science nonsense.
pickles55 t1_iy5sr3u wrote
The floor. Satellites are able to scan it from space. It's not mapped to a very fine level of detail but we have basic depth data for the whole ocean
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