The US space agency's (Nasa) Associate Administrator for space Operations, Bill Gerstenmaier, said it was the closest a debris object had ever come to the station.

NASA的太空作业首席助理Bill Gerstenmaier说，这是太空残骸最接近国际空间站的一次。

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Space station programme manager Bill Gerstenmaier said extending astronauts' time aboard the station could help lay the groundwork for eventual Moon missions or Mars trips.

BBC: NEWS | Science/Nature | Astronauts may get time extension

The US space agency's (Nasa) Associate Administrator for Space Operations, Bill Gerstenmaier, said it was the closest a debris object had ever come to the station.

BBC: International Space Station in debris scare

"More importantly than that financial piece is just the experience gained through the International Space Station, " said Bill Gerstenmaier, Nasa's associate administrator for human exploration and operations.

BBC: Europe and US agree details for Orion astronaut spacecraft