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Not one to brag, but this is pretty momentous. By dropping this one tube to the ground, I’ve officially started setting aside samples that Mars Sample Return could bring back to Earth someday.

Learn more: http://go.nasa.gov/3WzZ5qF
#PerseveranceRover
in reply to NASA

What if it gets covered in Mars dust over time? Can it still be found and retrieved?
in reply to NASA

@nasa. hey 😃 that's a sonic screwdriver 😄😉
@NASA
in reply to NASA

Not the first trash, that mankind left on another planet … doing the same mistakes again and again … 😢
in reply to NASA

Can you explain how these tubular samples can await retrieval on the Mars surface without threat of dust storms covering them up? I assume the vials have trackers, but can we be sure a future mission includes no-fault retrieval tools?

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