CAPE CANAVERAL, Fla. (AP) - A spacewalking astronaut whose grease gun erupted in a backpack-sized tool bag accidentally let go of the tote outside the international space station Tuesday, and it floated off along with everything in it.

It was one of the largest items ever to be lost by a spacewalker, and occurred during an unprecedented attempt to clean and lube a gummed-up joint on a solar panel.
Heidemarie Stefanyshyn-Piper was just starting to work on the joint when the mishap occurred.
"Oh, great," she mumbled.