Engineers are hopeful that the veteran spacecraft Voyager 1 might have turned a corner after spending the last three months spouting gibberish at controllers. On March 1, the Voyager team sent a command, dubbed a "poke," to get the probe's Flight Data System (FDS) to try some other sequences in its software in the hope of circumventing whatever had become corrupted. Readers of a certain vintage will doubtless have memories of poke sheets for various 1980s games. Not that this hack ever used a po...