Sixth Community Street was merely a tiny area within District Ten of the Orion Arm Tenth Zone in the Milky Way Galaxy.
Yet this "tiny community" had a maximum diameter of 1,800 light-years.
Within this cosmic community were tens of thousands of star systems.
The Solar System, where Earth was located, was one of them.
Moreover, Noah had said before that Earth had the highest civilization level in this cosmic community.
In the other star systems, either the planets had yet to develop and nurture life,
or the life they had nurtured was still in its primitive stages, similar to Earth millions, tens of millions, or even hundreds of millions of years ago.
A small number had already developed primitive civilizations.
But compared to Earth's modern technological civilization, they still lagged far behind.
In short, whether it was Earth Civilization or the civilizations of other planets, as long as they remained civilizations within Sixth Community Street,
none of them possessed the ability for interstellar travel.
With Earth's technology, they could not even fly a single light-year.
According to known historical records, Earth Human had launched space probes into the universe around fifty years ago.
By now, in just fifty years, they had traveled more than 24 billion kilometers through space.
However, one light-year was approximately 946.1 billion kilometers.
Earth Human's probes had spent nearly fifty years traveling.
Yet they had not even covered a fraction of one light-year.
Even using the most advanced spacecraft currently available,
crossing the mere distance of one light-year
would still take thousands of years.
Meanwhile, Sixth Community Street spanned 1,800 light-years at its maximum diameter.
Even its minimum diameter reached 1,244 light-years.
How were humans supposed to cross such a distance?
So Noah had not been wrong when he said,
"The Milky Way Galaxy has