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Description

A hypothetical primordial Earth-like exoplanet in the far reaches of the universe:
Stromatolite-like formations begin to enrich the atmosphere with oxygen. As a result, iron begins to oxidize and stain the shallow seas.
This world is slightly larger and more massive than Earth, a "Super-Earth." It has no moon, but a thin ring of smaller asteroids left over from the formation of the planet. The orbits of these asteroids have meanwhile aligned and stabilized. Nevertheless (geologically seen) impacts occur more often than on Earth. The bigger ones can have effects on the whole planet. The planet is now 3 billion years old, but life has not yet progressed beyond the stage of simple life forms. Larger asteroid impacts from the ring keep preventing life forms from evolving.
The host star is also somewhat larger, more massive, hotter and also brighter than the sun. In another 3 billion years, it will leave the main sequence and evolve into a red giant, gradually destroying most of its planets or at least burning them to ashes.
Our hypothetical world will hardly ever develop higher life forms under these circumstances.

Terragen 4.5.71 and Pixelmator 3.0

Description

A hypothetical primordial Earth-like exoplanet in the far reaches of the universe:
Stromatolite-like formations begin to enrich the atmosphere with oxygen. As a result, iron begins to oxidize and stain the shallow seas.
This world is slightly larger and more massive than Earth, a "Super-Earth." It has no moon, but a thin ring of smaller asteroids left over from the formation of the planet. The orbits of these asteroids have meanwhile aligned and stabilized. Nevertheless (geologically seen) impacts occur more often than on Earth. The bigger ones can have effects on the whole planet. The planet is now 3 billion years old, but life has not yet progressed beyond the stage of simple life forms. Larger asteroid impacts from the ring keep preventing life forms from evolving.
The host star is also somewhat larger, more massive, hotter and also brighter than the sun. In another 3 billion years, it will leave the main sequence and evolve into a red giant, gradually destroying most of its planets or at least burning them to ashes.
Our hypothetical world will hardly ever develop higher life forms under these circumstances.

Terragen 4.5.71 and Pixelmator 3.0