5 ms·
I figure if you want to send out a signal that can be distinguished from background radiation at tens or hundreds of light years, your best bet would be to deto
by CommieBobDole 3y ago
I figure if you want to send out a signal that can be distinguished from background radiation at tens or hundreds of light years, your best bet would be to detonate gigaton-scale nukes in space in some sort of mathematically interesting pattern.
Or manufacture a few billion tons of some exotic element that doesn't exist in nature and dump it into the sun on a regular basis. But it looks like somebody else might have already had that idea.
https://en.wikipedia.org/wiki/Przybylski%27s_Star https://en.wikipedia.org/wiki/Przybylski%27s_Star
- corobo 3y agoNow I'm imagining the planet exploding and some aliens 30 million years from now "What was that flash??" "Dunno" The end of our legacy haha. We really should get a backup planet sorted out at some point once we've fixed gestures at everything
- metadat 3y agoContact (1996) solved this nicely: Send out a sequence of prime numbers.
- gs17 3y agoThe problem isn't making an interesting pattern, it's the medium of that pattern at a power level that is detectable when it reaches them. Flashing prime numbers at stars with a 60W bulb isn't going to get heard.
- JPLeRouzic 3y agoDoes this explain why we didn't detect Aliens with SETI? Because their signals would be under the noise level (except for a few stars)? Indeed those stars that close enough to our interstellar probes will be also informed of our existence. "The transmissions to Voyager 2, Pioneer 10, and Pioneer 11 have already encountered at least one star, while those to Voyager 1 and New Horizons will encounter their first stars in the near future." https://arxiv.org/pdf/2304.07400.pdf https://arxiv.org/pdf/2304.07400.pdf