Spacewalking astronaut copes with frayed tether, bad jetpack

CAPE CANAVERAL, Fla. (AP) — A spacewalking astronaut successfully replaced a blurry camera outside the International Space Station on Friday, but had to contend with a balky jetpack and a frayed safety tether.
Both jetpacks and safety ties are crucial for saving a flyaway astronaut.
NASA said Joe Acaba was always securely attached to the orbiting outpost and never in any danger during the nearly seven-hour spacewalk.
But one of his tethers had to be replaced shortly after he and station co