Earth May Soon Have a Laser Defense System to Cloak it From Hostile Alien Species

There’s an ever-growing chance of an actual alien invasion taking place in the near future, that’s why scientists are now working on a defense mechanism based on lasers that would cloak our planet’s activity from any unwanted visitors.
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A considerable portion of energy emanating from the human race is directed towards the discovery of alien life. Past the enthusiasm of such an accomplishment,
there is always the possibility of these intelligent aliens not being so peaceful. Even more, in the case of an alien contact, they could see planet Earth as an extremely valuable place from where to harness resources. After all, we humans are exploiting it, so why shouldn’t they want to do the same?
Fortunately for us, a destructive alien scenario has been pictured by astronomers who also found a solution – cloaking our planet using lasers in case things go the other way around. So how will they do that you might ask? While on the lookout for planets outside of our solar system, astronomers are mainly tracking stars which dim periodically. That perturbation in light indicates that a celestial body is passing in front of it, thus revealing relevant traits about it such as the orbiting time, size, and even how close the planet is to the star.
Although this survey allows only for a few planets to be studied at a given time, it’s an effective way to determine where else could life reside in the universe. Now, if intelligent aliens would use a similar technique when scouting for hospitable planets, they’ll be in for a treat since humans have already developed a way to block all signals.