the.com/tether line
the thin rope deciding whether you float home or drift into legend.
spacewalk lifelineAstronauts clip on so they don't become satellites
backup propulsionNASA jetpacks exist for snapped-tether disasters
max safe lengthToo long, and you swing dangerously off-station
underwater useDivers tether to surface in zero-visibility wrecks
origin wordFrom Old Norse for rope or chain