- NASA eyes SpaceX, Blue Origin to cut Mars rock retrieval costs Phys.org
- NASA is fighting to return samples from Mars. Here are the two ways they might do it in the 2030s CNN
- NASA collected Mars rocks to haul to Earth. It still hasn’t decided how. The Washington Post
- NASA Will Let Trump Decide How to Bring Mars Rocks to Earth The New York Times
- NASA overhauls plan to bring samples from Mars back to Earth NBC News
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