If at first you don't succeed...

Perseverance 'Selfie'   (NASA photo)

Perseverance has been earning its name right along.  Although somehow blocked from collecting a drilled-rock sample from a Mars crater, it will simply have to try, try again.

Scientists aren’t quite sure what went wrong, so they too will have to persevere.  They suspect that Mars rocks might have “unforeseen properties” that interfered.  Or perhaps the soil is overly “sticky.”  Fortunately, the overall sampling system seems to be in good shape.

Resources

https://spacenews.com/perseverance-first-sampling-attempt-comes-up-empty/