ETs are not immortals
In case you can do the math, but have elected as to ignore reality of even extreme biology;
at 10% light speed it'll take 90+years arriving from Sirius.
at 1% light speed we're talking of perhaps 1000 years.
Either of those are one-way tickets, and I believe the fastest recorded substance (short of any supernovae associated substance) was 600 km/s, and that's not even 1% light speed. The following link is to a fairly old page that needs a good deal of revision and polish, and those various corrections. This is where your expertise input is going to help accomplish this in spite of NASA, and I intend to post credits for whatever you've got that makes any sense whatsoever.
http://guthvenus.tripod.com/gv-terminal-velocity
In case you can do the math, but have elected as to ignore reality of even extreme biology;
at 10% light speed it'll take 90+years arriving from Sirius.
at 1% light speed we're talking of perhaps 1000 years.
Either of those are one-way tickets, and I believe the fastest recorded substance (short of any supernovae associated substance) was 600 km/s, and that's not even 1% light speed. The following link is to a fairly old page that needs a good deal of revision and polish, and those various corrections. This is where your expertise input is going to help accomplish this in spite of NASA, and I intend to post credits for whatever you've got that makes any sense whatsoever.
http://guthvenus.tripod.com/gv-terminal-velocity
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