Robots requiring neither rest nor food, but only lubricants and power; robots insensible alike to that bitter cold and to that noxious atmosphere.

The planetoid in question does not appear to support even a noxious atmosphere, or show any indication of tectonic activity.

Someone traveling the River Tethys will find no river here, of course, only the boiling mud, noxious, unbreathable atmosphere, and waiting troopers in full battle armor.

"But what proves that there's not a noxious atmosphere on the other side?"

The noxious atmosphere in which this great genius lived and worked is powerfully though unintentionally evoked by his wife, Cosima, in her recently published journals.

It involved a lot of heavy machinery, usually in vacuum or noxious atmospheres, and all kinds of things could happen.

Toward the horizon the stars disappeared, their light unable to penetrate the noxious urban atmosphere.

"Pollution of the atmosphere and environment by industrial wastes, noxious fumes, chemical effluents, contamination of field-grown edibles, among other evils."

It would be surprising indeed if such a noxious atmosphere as yours could nurture any real intelligence.

Poised high above the outermost layer of that noxious atmosphere he studied for a long time every visible feature of the world before him.