edited to add this incredible piece by my friend @tolbachik-art!! thank you for this!!
Life, they say, finds a way.
When humankind sent some of their first interstellar probes, the Sojourner twins, to the neighboring Alpha Centauri binary star system, they had no idea what they would find. The Sojourners' predecessor, the Darwin probe, had already discovered complex life on a frigid moon in the Proxima Centauri system, showing humanity they still had much to learn about the cosmos. With the Sojourners, all bets were off.
The one thing they never expected to find, of course, was an abandoned alien megastructure -which was exactly what Sojourner 2 discovered orbiting Alpha Centauri B. Dubbed the Tellus Ring, after an ancient Roman goddess of the Earth, this thousand-mile-diameter, hundred-mile-wide ring orbits in a debris belt within the star's habitable zone. The ring rotates at the right rate to produce centripetal force just slightly weaker than Earth's gravity, equivalent to the gravity of a planet called Hemera -later discovered to be the origin point of the life present on the ring. Indeed, life thrives on the interior surface of the Tellus Ring, which is sculpted to bear landmasses and seas, under a halo-shaped sky kept in place by centrifugal force and five-mile-high walls on either rim. On Tellus, vast cities lie dormant; thousands of years more advanced than human civilization yet left to ruin and claimed by the nature that their builders had imported.
The discovery of Tellus changed humanity's understanding of the universe forever, and provoked countless questions about its origins that would only be answered with centuries of research and further interstellar exploration. The native people of Hemera, some eight or ten thousand years extinct by now, had a fondness for carrying their ecosystems with them wherever they went. This is evidenced by nearly a dozen terraformed worlds and hundreds of ecology-bearing megastructures scattered around known space, all overgrown and feral with the loss of their mysterious ancient wardens. It was recognized, relatively soon after human explorers arrived in the Alpha Centauri system, that Tellus was the sole surviving construct in its debris belt: the debris was, largely, parts of destroyed ringworlds and similar constructs. Similar destruction has been found in every other system once inhabited by the ancients, leading xenoarchaeologists to suspect a vast and cataclysmic war as the cause of their extinction. Yet, by some grace of powers unknown, some products of their great hubris still survive.
While many other examples of ancient constructs have since been adopted and restored by humanity in their attempt to decipher the lost history of this ancient civilization, Tellus remains a lone monument to the tenacity of life -even when taken from its home and subjected to existential threat, it will endure and, in time, thrive.
