Malta’s ancient stone temples may offer clues to how Neolithic sailors understood the night sky and navigated the Mediterranean thousands of years ago.
Researchers believe Malta’s first farming communities probably arrived from Sicily. The journey required crossing nearly 97 kilometers, or 60 miles, of sea. For part of the voyage, travelers would have been unable to see land.
Reuben Grima, an archaeologist at the University of Malta, said the crossing was a major achievement for people without compasses, GPS, or modern navigation tools. Missing Malta by about 30 kilometers, or 19 miles, could leave the island completely out of sight.
Ancient temples point toward the sky
Beginning around 3600 B.C., Malta’s Neolithic communities entered a nearly 1,500-year period of monumental construction. They built more than two dozen large stone structures across Malta and neighboring Gozo. Several are now part of UNESCO World Heritage Sites. The Maltese islands contain some of the world’s oldest surviving megalithic structures, including Ġgantija and Tarxien.
At Tarxien, researchers have investigated whether the architecture contains deliberate astronomical alignments. A 2022 study published in Digital Applications in Archaeology and Cultural Heritage identified an orientation associated with Crux, commonly called the Southern Cross.
Malta’s ancient temples may hold clues to a remarkable Neolithic skill: navigating by the stars.
Built thousands of years ago, the monuments point to a culture of skilled sailors, ambitious builders and possibly keen observers of the night sky. pic.twitter.com/myyw1A8Zsl
— Tom Marvolo Riddle (@tom_riddle2025) August 11, 2026
The researchers suggested Crux could have provided a useful reference for sailors. Travelers heading south from Sicily toward Malta would generally face the constellation. Those sailing north would have it behind them. The connection remains a hypothesis. The alignment does not prove Neolithic sailors deliberately navigated using Crux.
Another theory involves water that once collected at Tarxien. Still water could have provided a natural reflective surface in a society with limited access to manufactured mirrors. Researchers have suggested such pools might have helped people observe the night sky. However, there is no firm evidence that the water was deliberately used for astronomy.
Gozo offers clues to ancient beliefs
On Gozo, the Ġgantija temple complex provides another window into Neolithic Malta. Construction may have begun about 5,600 years ago, making the monument older than Egypt’s pyramids at Giza.
Isabelle Vella Gregory, an archaeologist at University College London, argues that Malta’s prehistoric communities had complex beliefs extending beyond monumental construction and pottery.
Their treatment of the dead may indicate ideas connecting life, death, the past and the future. She also believes the night sky played an important role in their worldview.
Obsidian provides physical evidence of sea travel
More concrete evidence of Malta’s Mediterranean connections comes from obsidian, a volcanic glass whose chemical composition can reveal its geological origin. Similar chemical analysis of ancient obsidian tools in Peru has helped researchers identify their sources and reconstruct long-distance trade networks.
Researchers have traced some obsidian found on Malta to Pantelleria, a volcanic Italian island between Sicily and North Africa. The material may have reached Malta through Sicily. Grima, however, does not rule out direct voyages between Pantelleria and Malta.
Researchers cannot know exactly how these communities understood the heavens because they left no written records. Many monuments also survive only partially, making their original design difficult to reconstruct.
Still, their temples and far-reaching maritime connections challenge simple views of Neolithic island life. Malta’s early communities were accomplished builders and sailors whose understanding of the sea, landscape and possibly the stars was more complex than their surviving stones alone might suggest.
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