Mission control is monitoring space junk to make sure it doesn't get too close during a space walk 'Russian' Debris Threatens Atlantis Mission As Ground Control Fears It Will Hurtle 'Dangerously Close' To ISS During Space Walk -- Daily Mail
* Nasa is trying to work out if the junk comes from a defunct Russian satellite
* It is scheduled to pass the space station at around 5pm GMT on Tuesday
Nasa is monitoring a piece of 'Russian' space junk that looks likely to come dangerously close to the International Space Station during a planned space walk tomorrow.
The debris is heading towards the station, where Atlantis yesterday docked on its final mission.
Scientists are still trying to work out how big the object is and how close it will come to Atlantis. Some believe it originated from a defunct Russian satellite that is orbiting Earth.
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