| 1 | China has now become the third space agency to visit this area. | |
| 2 | Only the European Space Agency and the US have previously sent probes there. | |
| 3 | But the impact left more than 150, 000 pieces of debris floating above Earth, NASA estimates. | |
| 4 | Last month, the Senate passed its version of the NASA authorization bill, which is more of a compromise. | |
| 5 | The review said the agency may have to abandon the Ares rockets and switch to a cheaper design. |
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