We examine a real scientific proposal to dam the Red Sea and turn evaporation itself into one of the largest power plants ever conceived. Using a 100-kilometer megastructure, researchers believed they ...

There are three ways to look for evidence of alien technological civilizations. One is to look out for deliberate attempts by them to communicate their existence, for example, through radio broadcasts ...

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 ...