Just sharing this non-fantasy cool article
https://www.ras.org.uk/news-and-press/2813-laser-cloaking-device-could-help-us-hide-from-aliens
https://www.ras.org.uk/news-and-press/2813-laser-cloaking-device-could-help-us-hide-from-aliens
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Laser cloaking device could help us hide from aliens
- Thread starter Onirim
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No, it could not. This article is based on the presumption that we know that there are aliens on another planet in another star system(and their location). We don't even know if there are aliens in the first place.
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We dont know that, all we know is that it is very likely they do exist.
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Humans arent allowed to have cloaking devices... dont violate the treaty of algeron...
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We don't even know how life began on Earth and the necessary conditions for it to happen. Sure there is the drake equation but that is to be taken with a big chunk of salt. Claiming to know that aliens exists is as false as claiming to know that God exists.
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Also suppose that we have found aliens like the article presumes and also suppose that we have identified their location and we do what the article says and we cloak ourselves. That would be pretty obvious for any other alien who looks at the stars that "oh, for billions of years there was a planet there and now it is suddenly gone, let's investigate it". We humans would surely investigate such an obvious anomaly and there is no reason that the aliens wouldn't.
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well we know that life exist, and we know a bit of teh way how it starts, the chances that alien life exits are so high that you can claim that there are aliens, somewhere-
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We have numerous competing theories about how life started, but the conditions for life(especially complex) is much more complicated than the simple start of life. To quote from wikipedia: "The origin of life is a scientific problem which is not yet solved. There are plenty of ideas, but few clear facts."
With this in mind, it is pointless to assume that aliens exist and especially pointless to assume that all they want is to look for our little insignificant planet to bother us. Remember even if there are intelligent aliens who have mastered interstellar travel, they have no idea if we are friendly aliens or if we are basically aliens who would dissect them and then put their heads on poles just before we launch our fleet to head to their planet for some good alien purging. Furthermore they have no idea if we are aliens with stones and sticks or with death rays and doom stars. The bottom line is that they would have no idea who we are and we would have no idea who they are.
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This idea would work for hiding us from specific exoplanets. No anomaly would be seen by others falling outside the laser beam
Main point here is that we better find them before they find us.
You do realize that the article presumes to hide from one specific planet. If we were to try to hide from all the known exoplanets then it would not be a short burst of laser that we would require once a year. Also it said that we would be able to hide from the visible light spectrum meaning that if the aliens are looking at infrared or ultraviolet then it is useless. To make the assumption that the aliens would have the same eyes as us and that they would not look at more spectrum than visible light is VERY far-fetched, especially when there are animals here on Earth that can see UV lights(like bees) and we humans also have telescopes looking at a much wider range of the electromagnetic spectrum than visible light. The anomaly would be that up until that moment they saw every year a planet which had a shadow on our sun, all of a sudden that shadow would be gone and you don't think that they would see that as an anomaly? Kind of big project which is based on so many unstable foundations that I begin to think that it is an april fools joke.
Last time I checked, zero life has been discovered on a planet other than Earth.
We don't even know that. We literally have one data point: Earth. Based on some theories that use highly extrapolated data from one data point (Earth), some have suggested there could be more life out there. But for all we know Earth contains the only life in the universe.
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For some reason i don't think that an alien race which might be a possible threat to us is being tricked that easily. This whole "laser cloaking device" would be good enough regarding our current tech level - but probably not if there's a race capable to travel to distant stars. Any other race isn't a threat in the first place.
Btw: imo it's quite interesting that the aspect, that we are able to identify possible planets isn't acknowledged in (most?) 4X games.
Btw: imo it's quite interesting that the aspect, that we are able to identify possible planets isn't acknowledged in (most?) 4X games.
scientists with too much time on their hands......
We know the precursor to life is probably abundant, but until we know how life is actually created any equation on its existence is just a WAG.
We know the precursor to life is probably abundant, but until we know how life is actually created any equation on its existence is just a WAG.
what i meant was the discovered bacteria in asteroids and meteorites that fallen to earth
It only means life HAS existed elsewhere, billions of years ago.
And its still restricted to our Solar System
Do you have a source of there actually being bacteria on these asteroids? I've seen articles that suggested there could have possibly been bacteria in some distant past given the right conditions, but no proof of it actually existing (only hypothetical). And that's the problem with all of this "evidence" of life on other planets - it's all hypothetical, and simply assumptions based on assumptions.
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I am displeased. Aliens would not invade earth for resources alone and the logistics of space travel make it very unlikely they would seek Earth as a colony to be conquered. Our value to other species is the same value we would have from them, biological, technological, and cultural uniqueness. Hiding ourselves will just make first contact awkward.
Slave shield style techniques are a real possibility, though. Or hucking an asteroid at us on principle.
Slave shield style techniques are a real possibility, though. Or hucking an asteroid at us on principle.
Even if Earth is an improbable fluke the sheer size of the know universe makes the chance that life exists elsewhere highly probable.
And the fact that even with the rudimentary methods available we're finding that most stars have planets, or that the building blocks of life as we know it are increasingly being found to form quite readily in many environments, anyone with a decent grasp of biochemistry an interest in astronomy would see that alien life is highly likely to exist. And thats just considering earth-like life, let alone forms of life based on other chemistries.
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