They are looking for characteristic changes in the luminosity of stars, either their special spectrum, or the simplest – radio waves that differ from natural sources. American physicists proposed to expand the range of instruments used at the expense of gravitational wave detectors.
The notorious Fermi paradox worries not only ufologists and futurologists, but also full-fledged scientists. There are too many indications that life in the universe cannot be a unique earthly phenomenon.
At the same time, until now, humanity has not met a single evidence of other intelligent civilizations. One of the hypotheses is that our tools are not good enough or not properly configured to find them, therefore, it is necessary to come up with new methods.
Or find new ways to
use tools already in the arsenal of astrophysicists. For example,
gravitational wave observatories. The logic is as follows: if a highly
developed civilization wants to travel on the scale of the galaxy,
sooner or later it will build a giant or fast spaceship....<<<Read More>>>....