Read "The Martian Way" by Isaac Asimov online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Rioz's eye caught the flash of the radio signal as he stepped into the pilot room. For one moment, the palms of his hands grew clammy when it seemed to him that it was a radar pip; but that was only his guilt speaking. He should not have left the pilot room while on duty theoretically, though all Scavengers did it. Still, it was the standard nightmare, this business of a strike turning up during just those five minutes when one knocked off for a quick coffee because it seemed certain that space was clear. And the nightmare had been known to happen, too.
Rioz threw in the multi-scanner. It was a waste of power, but while he was thinking about it, he might as well make sure.