The ionosphere is one of the highest zones in a planet’s atmosphere, so named because of the ionisation caused to it by solar radiation.

The planet Rajatha Prime featured a unique ionosphere which prevented accurate sensor scans being taken from orbit, because of this the ruins of a Rajathan city remained undiscovered on the planet for some two millennia. (TNG comic: Captain's Pleasure)

The atmosphere of the planetoid Darien 224 caused ionospheric bounce, which coupled with bifurcated relays made communications to the planetoid's surface difficult. (EV comic: Cloak and Dagger)

In 2375, during the final battle of the Dominion War, the USS Defiant fired its weapons on a Breen battle cruiser that had entered the ionosphere of Cardassia. (DS9 novelization: What You Leave Behind)

ConnectionsEdit

• Ionosphere article at Memory Alpha, the wiki for canon Star Trek.
• Ionosphere article at Wikipedia, the free encyclopedia.