The rover collected its second scoop of Martian soil at the "Rocknest" site on Sol 66. More bright particles were found. Believing these particles were also tiny pieces of rover, the team decided not to run the dirt sample through Curiosity's analysis instrument to avoid contaminating the mechanism with Earth debris. The scoop was thrown away. That same day, however, Curiosity snapped an image showing part of the hole left when Curiosity took her first scoop.