Aliveron

On the outskirts of a spiral galaxy, lies a young star, just on the line of a star, and failed star.

And around that star, orbits seven unique planets.

Hundreds of millions of years ago, a disk of gas and dust collapsed into an ultracool star, where a planetary disk settled into a flattened shape. Dust collided and formed clumps, while proto-planets began to form.

These planets collided with one another, sometimes getting destroyed, orbiting far away from the star, after millions of years, they began to migrate, and settle into more stable orbits.

The innermost world orbited extremely closely, and had an orbital period of one in a half days, it became a hellish world, with lakes of lava on its solar point, and a thin atmosphere constantly being stripped away by the stellar winds. It did not rotate, and there was no magnetic field due to its core being so small.

The second planet out also orbited extremely closely and had a slightly thicker atmosphere. There was a strong magnetic field and brilliant aurora constantly brightened the surface. It was also tidally locked and orbited in almost two in a half days. Its temperature was just below boiling temperature, and there was a small ice cap on the farside of the planet. The sky looked orange from the surface, and the other planets could easily be seen in the dim red light of the star.

The third planet away from the star was remarkable, it orbited its star in just over four days, had a reasonable magnetic field, and boasted a thick atmosphere. The daytime solar point was a blistering desert that had a raging hurricane, while the anti-solar point had a massive ice cap that reached the terminator. But on the terminator, there was complex marine life, thriving under the shallow seas that created a ring of water. From space, the planet had a vast array of colors, the dirty white clouds in the hurricane, the rusty desert underneath, the dark blue water stretching around the planet, and the ice cap on the nightside, where the only light it got were from the outer planets and massive aurora that shined in the otherwise black night.

The fourth planet out was the most intriguing. It orbited its star in less than six in a half days and had a large magnetic field that protected a thick atmosphere, while life of all sorts on the planet evolved and adapted.

Much of the solar point was covered in water and was dotted with islands. Most of the land was at the terminator, and life grew and flourished. There were aquatic animals, land animals, and a wide array of plant life that looked dark blue to the eye. But perhaps what made the planet most interesting was the amphibious lifeforms that were exploring, and gaining consciousness.

The fifth planet out was a cooler, oceanic world, completely covered in some form of water, deep seas that went across the entire dayside, and a massive ice cap on the nighttime side. Marine life was complex, and all sorts of plants and animals grew and evolved under the ocean. The thick atmosphere was rich in oxygen and water vapor, protected by a magnetic field. The planet orbited in over nine days and was tidally locked.

The sixth planet away was an icy oceanic planet, with a strong magnetic field, and thick atmosphere that transported heat to the farside, melting all the water on the planet, and strong currents keeping it from freezing. There were slushy ice caps, with warm water around the equator. From space, the planet looked a dim seafoam green. Whirling clouds all over the planet, with frequent storms. And basic unicellular life lived all around the planet. The planet had a strong magnetic field and orbited its star in less than twelve in a half days.

The seventh and final planet in the system was an icy world, just a bit smaller than the third planet. It had a very weak magnetic field, and small pockets of subsurface water dotted under the surface, however, life did not live here, at least not right now. Long, thin canyons streaked across the entire surface, formed by tidal effects, these same tidal effects helped smooth the surface of large impacts. And it held a thin atmosphere, almost too thin to be considered one. It orbited in just over twenty days, and from the dim surface, you could see all other planets in the daytime sky.

On the fourth planet away from the star, lies a lifeform like no other, it stands tall and evolved on the land, over thousands of years, this species of life grew to learn how to make fire, and turn stones into tools, they were on their way to making a great empire.

But it wasn't meant to be.

On one terrible day, an Asteroid struck the planet, wiping out much of the life, including the young species that could've done great things, one day, some day.

All wasn't lost, as this was how the other planets gained the precious seed that is life.

Over tens of thousands of years, life returned and populated the planet once again. And over a hundred thousand years after the species went extinct, a new lifeform emerged. It came from the water and adapted quickly. It gained consciousness, and asked questions, learned how to make fire, learned how to make tools, and before long, it learned how to turn metal into something useful.

Thousands of years went by, as empires rose and fell, and technology progressed. Wars were waged, wars were won, this species had many ups and downs, and finally, they developed steam.

Over two hundred years past before they had the capability to travel to space, and once they did, they expanded quickly into the unknown.