Some of the mountains on show are comparable in height to the highest on Earth but of course they are not composed of rock but most likely of ice. The plains below them may contain solid nitrogen or carbon dioxide.
Also visible above Pluto’s horizon is its tenuous atmosphere.
From Astronomy Picture of the Day for 9/1/21 here is a view of Saturn’s moon Tiatn that you would never see if you were somehow be able to be on Saturn itself.
Titan is tide-locked to its primary and so always presents the same face to it. Its reverse side however was however visible to the Cassini probe.
Since Titan has an atmosphere its surface is not seen directly but the fuzziness around its edges – seen against the thick line of Saturn’s rings and the planet itself beyond – shows the atmosphere’s thickness relative to the satellite.
On Astronomy Picture of the Day (APOD) for 3/1/21 there is a picture taken by Hallgrimur P Helgason, showing a great example of pareidolia (the tendency of humans to perceive a pattern that is not there.)
As it isn’t copyright free I’m not displaying it here but this is the link.
It’s a wonderful shimmering green-aura’d image of a flying bird which APOD likens to a phoenix (itself of course non-existent.)
This is an animated sequence from You Tube via Astronomy Picture of the Day for 3/11/20 showing the OSIRIS-REx spacecraft touching – and lifting up part of – the surface of asteroid Bennu.
The plan is to return the sample to Earth for analysis with an eye to determining conditions in the early Solar System and whether the astreroid contains unusual minerals.
This is galaxy UGC 810. Its odd shape is because it is in collision with UGC 1813 (out of picture below the frame.) Altogether the configuration is known as Arp 273. See previous photo here.
A video of Asteroid Bennu, first of all with speeded up spin, then zooming in to a prominent rock on the surface (given the name Simurgh apparently,) as shot from spacecraft OSIRIS-REx shortly to try to land and get a sample of Bennu to bring back to Earth.
It’s still thrilling to me that we as a species can do and see things like this.