In a galactic breakthrough, modern telescopes have unveiled potential signals of alien megastructures. We’re treading into the realm of advanced civilizations and their technological marvels, and the ...

A megastructure found in the Baltic Sea may represent one of the oldest known hunting structures used in the Stone Age — and could change what’s known about how hunter-gatherers lived around 11,000 ...

Scientists have found a giant wall underneath the Baltic Sea — and they’re pretty sure humans made it. In a new paper published in the Proceedings of the National Academy of Sciences, the German ...

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Lurking some nine billion light years away from Earth is what appears to be a so-called cosmic megastructure in the shape of an enormous ring. It’s so large that its existence should be impossible, ...

In 2021, Jacob Geersen, a geophysicist with the Leibniz Institute for Baltic Sea Research in the German port town of Warnemünde, took his students on a training exercise along the Baltic coast. They ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A stone wall underneath the Baltic Sea may be the oldest known ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A megastructure ...