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We should shine lasers into space if we want to hide our presence from aliens, two US-based astronomers suggest.
originally posted by: ColdWisdom
The article piqued my curiosity only for a moment before I began to feel like I was reading a subtle expression of UFO Tabloid Sensationalism.
I hope it's an April fools joke because if not I'd agree it's stupid but I wouldn't use the qualifier "borderline". There are too many different directions the Earth can be observed from for it to make any sense and because of this it would do the exact opposite of the stated intent, to draw attention to Earth rather than cloaking it.
originally posted by: HolgerTheDane2
Since it is April Fools Day, we must assume it's a joke.
If not it is borderline stupid.
originally posted by: Havoc40k
Just a quick thought regarding the idea...
April Fools, perhaps?
The beams could compensate for the dip in light the Earth creates when it passes in front of the Sun, as viewed from far-off worlds, they contend.
originally posted by: peck420
Any being smart enough to travel the stars is smart enough to know that the best way to deal with troublesome viruses is a quarantine.
There is nothing in our solar system that would be worth the trouble of opening potential outbreak vectors.
That aside, a light show wouldn't do much to deter beings with the ability to travel the stars. They would be well past the technological point to monitor gravity wells, in real time, at vast distances (a requirement to move at high velocity through space).
According to the pair's calculations, emitting a continuous 30-megawatt laser for about 10 hours, once a year, would be enough to distort the characteristic dip in light when Earth transited the Sun, as viewed from an alien Kepler telescope.
This is just science fiction nonsense which modern scientists like Steven Hawking have been propagating in recent years.