In the constellation Cygnus, roughly 1,470 light-years from Earth, sits an otherwise unremarkable star that briefly became one of the most talked-about objects in the sky. Its brightness does not vary ...
When sonar first picked up a massive, stair‑like object on the floor of the Baltic Sea, the image looked less like geology and more like a movie prop. The structure’s circular outline, sharp edges and ...
What if aliens were building a massive power plant?Last time, I talked about the "Kardashev scale," which classifies the ...