From Newsgroup: alt.astronomy

All should realize, that travel to any other star, even a close one,
will absolutely never happen.

It all comes down to Distance = Speed x Time . Do the simple math.

Even at near light speed ( which is Very unlikely ), the times would
still be prohibitive.

This is why, although intelligent space faring species likely abound
throughout the universe, we are never visited by any.

Our fastest spacecraft is slower than light by a factor of about
30,000 .

A one way trip to our very nearest neighbor star would take about 140
millennia !

Put in perspective, only 2 millennia would take us back to the height
of the Roman empire, and 66,000 millennia would see the last of the
dinosaurs.
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From Newsgroup: alt.astronomy

Our fastest spacecraft is slower than light by a factor of about
30,000 .

Not sure of my estimate here.

Just how fast is our fastest spacecraft ?

Anyone ? ...
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From Newsgroup: alt.astronomy

Le 2025-07-14 |a 19:44, casagiannoni@optonline.net a |-crit-a:

Our fastest spacecraft is slower than light by a factor of about
30,000 .

Not sure of my estimate here.

Just how fast is our fastest spacecraft ?

Anyone ? ...

A 30 000th of the speed of light (about 300 000Km/s) is about 10
Km/second. That's slower than the orbital speed of the ISS and other
objects in low Earth orbit : 12 to 20Km/s depending on the altitude of
the orbit. Crewed crafts reentering the atmosphere travel at around
25Km/s, -#3Km/s.
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From Newsgroup: alt.astronomy

Our fastest spacecraft is slower than light by a factor of about
30,000 .

Not sure of my estimate here.

Just how fast is our fastest spacecraft ?

Anyone ? ...

A 30 000th of the speed of light (about 300 000Km/s) is about 10
Km/second. That's slower than the orbital speed of the ISS and other
objects in low Earth orbit : 12 to 20Km/s depending on the altitude of
the orbit. Crewed crafts reentering the atmosphere travel at around
25Km/s, #3Km/s.

Thanks for info.

So my estimate was on the low side, but travel to nearest star would
be fewer, but still many millenia.
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From Newsgroup: alt.astronomy

Re: Star travel ? - Never !
By: casagiannoni to alt.astronomy on Mon Jul 07 2025 17:49:07

All should realize, that travel to any other star, even a close one,
will absolutely never happen.

It all comes down to Distance = Speed x Time . Do the simple math.

Pfft, antiquated mathematics. All you have to do is bend space so that your origin and destination points converge! Duh.
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