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On 4 October 1957 the first satellite, Sputnik, was launched. Since then, thousands of spacecraft have been sent into orbit. Unfortunately, space is being 27 ___ by debris from these space flights. More than 70,000 objects have been left in space. Parts of rockets have been left. Old satellites have been abandoned. Other items, including a glove, a spanner and a camera, have been 28 ___ by astronauts. The situation up there is becoming dangerous. Both Russian and American spacecraft have been destroyed. 29 ___ astronaut would be killed if he or she was hit by a piece of rubbish. It would cost billions of dollars to collect all the debris, but if nothing is done the 30 ___ will only get worse. Sooner or later a satellite will be damaged by a large piece of rubbish and thousands more pieces of debris will be scattered.
On 4 October 1957 the first satellite, Sputnik, was launched. Since then, thousands of spacecraft have been sent into orbit. Unfortunately, space is being 27 ___ by debris from these space flights. More than 70,000 objects have been left in space. Parts of rockets have been left. Old satellites have been abandoned. Other items, including a glove, a spanner and a camera, have been 28 ___ by astronauts. The situation up there is becoming dangerous. Both Russian and American spacecraft have been destroyed. 29 ___ astronaut would be killed if he or she was hit by a piece of rubbish. It would cost billions of dollars to collect all the debris, but if nothing is done the 30 ___ will only get worse. Sooner or later a satellite will be damaged by a large piece of rubbish and thousands more pieces of debris will be scattered.