Hypotheticly yes, but you would need something very big to block the light or reduce it. Planet sized for example, this is one way we detect planets around other stars, by measuring how much the light dims.
Another potential problem is that (at leas according to this wikipedia article https://en.wikipedia.org/wiki/List_of_nearest_galaxies) the closest galaxy is around 33000 light years away. So any signal we send will take 33000 years to get there and any potential return would take the same amount of time, so 66000 years in total. That is far longer than any human civilization exists
First part, wouldnt that only depend on the amount of light that you need to block for them to detect and couldn’t you place the shutter further away to reduce its size?
Also, name a faster way to transmit data intergalaxtically
Edit: also, since we are already transmitting light couldn’t we just send images. If life such as us is who we want to reach wouldnt it only make sense to design for our own light receptors?
Sure you can put it farther away, but the sun is massive, it would still need to be pretty big I would guess, but I’m not an astronomer so I don’t know the numbers.
As far as I know we don’t know of any faster way to send signals. That doesn’t make sending the signals impossible, just very impractical.
How about this, we point it at blackholes hoping they act as a worm hole and then are transmitted to people a million years in the past and we instruct them to write the data down on stone tablets so when they advance due to also giving them advance technology they remember to send a note back.
Thats all just math’s. We could create a theoretical model and send enough data where we maximize the probability. All be, the probability would still be starkly low but still an interesting thought experiment.
While radio telescopes are arguably slower then the speed of light, being able to encode and compress data into a radiowave is a faster way to communicate.
Hypotheticly yes, but you would need something very big to block the light or reduce it. Planet sized for example, this is one way we detect planets around other stars, by measuring how much the light dims.
Another potential problem is that (at leas according to this wikipedia article https://en.wikipedia.org/wiki/List_of_nearest_galaxies) the closest galaxy is around 33000 light years away. So any signal we send will take 33000 years to get there and any potential return would take the same amount of time, so 66000 years in total. That is far longer than any human civilization exists
First part, wouldnt that only depend on the amount of light that you need to block for them to detect and couldn’t you place the shutter further away to reduce its size?
Also, name a faster way to transmit data intergalaxtically
Edit: also, since we are already transmitting light couldn’t we just send images. If life such as us is who we want to reach wouldnt it only make sense to design for our own light receptors?
Sure you can put it farther away, but the sun is massive, it would still need to be pretty big I would guess, but I’m not an astronomer so I don’t know the numbers.
As far as I know we don’t know of any faster way to send signals. That doesn’t make sending the signals impossible, just very impractical.
How about this, we point it at blackholes hoping they act as a worm hole and then are transmitted to people a million years in the past and we instruct them to write the data down on stone tablets so when they advance due to also giving them advance technology they remember to send a note back.
Sure we can do that, but then we can also just think hard about it and hope anyone hears it, not much of a difference
Thats all just math’s. We could create a theoretical model and send enough data where we maximize the probability. All be, the probability would still be starkly low but still an interesting thought experiment.
While radio telescopes are arguably slower then the speed of light, being able to encode and compress data into a radiowave is a faster way to communicate.