From the Halo Wiki:
The term glassing, also known as plasma bombardment, is used to refer to the act by which Covenant ships bombard a planet from orbit using heavy plasma weaponry.
This concept of bombarding a planet and turning it to glass is not unique to the Halo series alone. The science-fiction video game Iji also has an alien species that renders a planet uninhabitable with orbital bombardment.
This concept has a real-world equivalent in the from the Naval bombardment of an area to wipe out resistance, known as an Alpha Strike.
I am aware that list questions are not allowed, so I am not asking for a full list of all works that contain this type of life-wiping orbital bombardment strategy. And I am aware that the idea probably originally came from the above-mentioned Alpha Strike.
What I am asking is, when did the concept of an orbital bombardment of a planet, resulting in the death of most life (Let's say, at least 70% of the dominant species being wiped out, assuming the dominant species is the intelligent, technology-using one), all life, or rendering the planet uninhabitable, first make an appearance in Sci-Fi?
Note that 'orbital bombardment' is a tricky thing to define. This Wiki definition is pretty good, but I will also accept any attack if it originates in space, even if it is from a sattelite that originally came from the planet in question, comes from another planet and enters the atmosphere to deliver a deadly payload (so long as it is not a ground or sea invasion force, or a persistent atmospheric attack), or any other space-originating attack from outside or within a planet's orbit, so long as the attack is sufficiently devestating and leaves little to no room for retaliation from the surface.