When the unexpected space debris came flying close to the space station Tuesday , it prompted the station 's six astronauts to take shelter inside two Soyuz capsules , NASA said . NEW : The debris came within 100 feet of the space station , NASA said . NEW : The source of the object remains a mystery . Russia 's Interfax news agency reported the ` ` ' '' came within 820 feet . The debris was spotted ` ` too late to make an avoidance maneuver , '' NASA said .
NEW : The debris came within 100 feet of the space station , NASA said . NEW : The source of the object remains a mystery . Russia 's Interfax news agency reported the ` ` ' '' came within 820 feet . The debris was spotted ` ` too late to make an avoidance maneuver , '' NASA said .