Researchers believe about a million samples of comet and interstellar dust — most tinier than the width of a human hair — are locked inside the capsule. The dust grains are believed to be pristine leftovers from the birth of the solar system, with some of the particles thought to be older than the sun. Scientists hope to slice them into smaller bits and probe them under a microscope to directly learn about their chemical makeup and the processes that shaped the early universe.
LINK TO FULL STORY: NASA
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