3 ms·
Even with speed of light the farthest message we could have sent would barely peak out of our cosmic neighborhood. We need a powered probe that accelerates outw
by xutopia 5y ago
Even with speed of light the farthest message we could have sent would barely peak out of our cosmic neighborhood. We need a powered probe that accelerates outwards sending a message for any chance of being heard out there in any reasonable time.
- behringer 5y agoThe speed limit of the universe is light speed. If you were to send a powered probe into the universe at almost the speed of light, and then send a light speed signal out on top of that, it would still be sent at the speed of light. Eg, no signal sent from any probe will ever get as far as our first radio signals sent into the universe, unless we find a faster than light solution. This is what Einstein discovered for us, which is called the theory of relativity.
- kortex 5y agoI read it to mean "probe that is moving hella fast and also radiating in every direction." So there is a "contact cone" rather than a "contact sphere," increasing the amount of space interacted with (even if only briefly)
- behringer 5y agoI think if you were to radiate out from any point inside of an enlarging circle, enlarging at the same speed as that circle, I can't see how it would radiate away from that bubble. That said, the signal would be much stronger if you tuned it for specific regions of space.