You could be forgiven for thinking that this extraordinary building was dreamed up as some sort of alien megastructure for a ...

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, ...

THERE comes a point at which any advanced alien civilisation worth its salt has to dismantle a neighbouring planet for spare parts. This isn’t an act of vandalism, you understand, but rather a ...

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 ...

Following is a transcript of the video. Narrator: In 2015, astronomers noticed something ...strange going on nearly 1,500 light-years from home. A star named KIC 8462852, aka Tabby's Star, kept ...

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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 ...

In the fall of 2021, Jacob Geersen, a marine geologist now at the Leibniz Institute for Baltic Sea Research, was teaching a one-week field course at the University of Kiel. The class was conducted ...

A mysterious star whose repeated bouts of darkening might be due to "alien megastructures," according to some researchers' conjectures, may now have more than a dozen counterparts that display ...

Back in 2016, headlines all over the world blared with news of a possible "alien megastructure" detected orbiting a distant Milky Way star. Now, a team of Columbia University astrophysicists has ...