Sources: 

NASA successfully resolved an issue with its Curiosity rover, which had become stuck on a rock called Atacama during its ongoing mission on Mars. After 13 years of exploration, the rover encountered an unprecedented situation when a rock remained attached to the drill sleeve.
Initially, attempts on April 29 to dislodge the rock were unsuccessful, but following a series of planned maneuvers on May 1, the team managed to vibrate and rotate the drill arm, leading to the rock's dislodgement.
In a remarkable turnaround, the rock shattered upon hitting the Martian surface, surprising scientists who noted,
โThis has never happened before in Curiosity's 13.5 years on Mars,โ as stated in a NASA blog post.
The rover was aiming to pulverize the Atacama rock, allowing for detailed examination of its material composition.
An unexpected scenario arose when the entire rock lifted from the ground when Curiosity retracted its arm, prompting the team to plan multiple dislodging attempts.
However, after a series of proactive actions, scientists witnessed the success on the first attempt, allowing Curiosity to continue its vital exploration of the Martian landscape.
Sources: 

NASA has resolved the issue with the Curiosity rover on Mars after it got stuck in a rock nicknamed 'Atacama.' The rover's drilling success has surprised scientists, marking a first in its 13-year exploratory mission on the Red Planet, with the rock ultimately shattering on the Martian surface.