We haven't that much safety line, even at closest approach.

Maintaining them was his closest approach to a religious ritual.

The two stars take more than 700 years to orbit one another and they will make their closest approach to each other around 2060.

Ten minutes before the solid objects got to closest approach.

During this time Ellen made its closest approach to land.

This is the 11th closest approach by a comet of all time.

Kepler-70c passes 240,000km away from Kepler-70b during their closest approach.

Here, at closest approach, they were only half a million kilometers away.

Here, b can be interpreted as the distance of closest approach.

This will be the closest approach to the sun of any space mission.