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Description

A hypothetical landscape on TRAPPIST-1 f, the fifth planet of the TRAPPIST-1 system, about 40 light-years from Earth.
en.wikipedia.org/wiki/TRAPPIST…
According to recent research, the planet is slightly larger and slightly more massive than Earth and still lies within the star's habitable zone. This cold world receives only slightly more than one-third as much radiation from its sun as Earth, predominantly in the red and infrared regions of the spectrum. The faint visible light has a distinct red cast. Should this planet have an atmosphere, larger water deposits are also possible, increasing the likelihood of some form of life.
The unspectacular image shows a canyon-like and cold, partly snow-covered mountain region at the everlasting day/night border of this world. The sedimentary layers of the mountains may contain fossils of earlier life forms. After one of the rather rare flare eruptions of the host star slightly above the horizon, the local life forms have discharged the excess of UV and X-ray radiation in the form of bioluminescence.
Just at the horizon the so far outermost planets of the system are visible in the dark sky. At this time, planet g appears about the size of the Moon in Earth's sky, planet h about a quarter of that. In a few hours planet g will transit (occult) planet h.

Terragen 4.5.54 and Pixelmator 2.0.3

Description

A hypothetical landscape on TRAPPIST-1 f, the fifth planet of the TRAPPIST-1 system, about 40 light-years from Earth.
en.wikipedia.org/wiki/TRAPPIST…
According to recent research, the planet is slightly larger and slightly more massive than Earth and still lies within the star's habitable zone. This cold world receives only slightly more than one-third as much radiation from its sun as Earth, predominantly in the red and infrared regions of the spectrum. The faint visible light has a distinct red cast. Should this planet have an atmosphere, larger water deposits are also possible, increasing the likelihood of some form of life.
The unspectacular image shows a canyon-like and cold, partly snow-covered mountain region at the everlasting day/night border of this world. The sedimentary layers of the mountains may contain fossils of earlier life forms. After one of the rather rare flare eruptions of the host star slightly above the horizon, the local life forms have discharged the excess of UV and X-ray radiation in the form of bioluminescence.
Just at the horizon the so far outermost planets of the system are visible in the dark sky. At this time, planet g appears about the size of the Moon in Earth's sky, planet h about a quarter of that. In a few hours planet g will transit (occult) planet h.

Terragen 4.5.54 and Pixelmator 2.0.3