~60 light years.
We’ve been broadcasting for longer, but everything we sent before Cold War Era military RADAR would get filtered out by the atmosphere or drowned out by the sun’s radiation.
Turns out everything since would be hopelessly scrambled almost immediately upon leaving the suns magnetic field and being subjected to the galactic wind (solar wind but… galactic) And we’re only getting more radio quiet as more and more communication becomes wired so we good.
~60 light years.
We’ve been broadcasting for longer, but everything we sent before Cold War Era military RADAR would get filtered out by the atmosphere or drowned out by the sun’s radiation.
Turns out everything since would be hopelessly scrambled almost immediately upon leaving the suns magnetic field and being subjected to the galactic wind (solar wind but… galactic) And we’re only getting more radio quiet as more and more communication becomes wired so we good.