The International Space Station (ISS) raised its orbit to avoid a piece of space junk from a 20-year-old Chinese rocket.The maneuver was carried out by firing thrusters on the docked Progress 91 spacecraft for 3 minutes and 33 seconds.The debris would have come within 0.4 miles of the station if the orbit was not raised, but the station's operations were not impacted.NASA continues to track hazardous objects to protect the ISS and astronauts, with avoidance systems helping prevent major collisions.