When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A star is dimming for reasons that astronomers can't explain. Observations by NASA's Kepler space ...
The Blinkerwall is submerged under 21 metres of water in the Baltic Sea. (Representational) A Stone Age wall, potentially the oldest known megastructure crafted by humans in Europe, has been uncovered ...
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