Perseverance rover has been carrying a pet rock around for over 100 Martian days - News9 LIVE

The rock chose to attach itself to the rover wheel and is being carried along for the ride

NASA's PerseveranceMars rover has been carrying along a passenger for the last four months, a pet rock that lodged itself in the front left wheel. A Martian day is known as a 'sol'. A hundred sols ag… [+1425 chars]

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