The astronauts used it to carry tools and cameras while they were on the moon.

VOA: special.2009.07.29

They pick it up on their bodies and carry it to another flower.

VOA: special.2010.04.06

It also trains biologists and others to carry on its work.

VOA: special.2010.06.22

"Which doesn't sound that far if you have a car, but it sounds very far if you have to get on a bus, and you have to carry your week's worth of groceries home with you."

VOA: standard.2010.07.28