On the west bank of the Achelous are the remains of one of the oldest shipyards in antiquity, that of the ancient Greek city ...

The strategic, cultural, and economic significance of ancient Greek colonies in the Black Sea and their enduring legacy.

The blue areas show the depth of the ocean filled to the shoreline level of the ancient, now-gone sea, dubbed Deuteronilus. The orange star represents the landing site of the Chinese rover Zhurong.

With its ground-penetrating radar, Zhurong had an opportunity to look for underground evidence of an ancient ocean. "The southern Utopia Planitia, where Zhurong landed on May 15, 2021, is one of ...