# Curiosity Rover Completes 49th Drilling Operation at Nazca Site NASA's Curiosity rover successfully drills into Martian rock to analyze potential crystal inclusions. - **Source:** [NASA](https://www.nasa.gov) - **Published:** 2026-11-10 - **Topic:** [science](https://brifing.si/c/science) - **Original article:** - **On Brifing:** https://brifing.si/s/c871c452-190f-4e7d-b069-5952758a458c ## Nazca Drilling Operation NASA’s Curiosity rover successfully completed its 49th drilling mission on Mars, designated as Nazca. The operation occurred on Sol 5050, following a series of rigorous stability and preload tests to ensure the rover's robotic arm could safely penetrate the rock surface. This site was specifically chosen for its unique disc-shaped inclusions. ## Scientific Target Rationale The team returned to this specific region due to the presence of disc-shaped inclusions within the rocks, which researchers interpret as potential crystals. If confirmed, these structures could serve as vital indicators of past environmental conditions on Mars. Understanding these minerals is essential for reconstructing the planet's complex geological and climatic history. ## Pre-Drilling Safety Protocols Before the drill bit engaged with the rock, the rover underwent a mandatory stability test to confirm all wheels were on solid ground. Subsequently, a preload test evaluated the rock's structural integrity and the forces exerted during drilling. These safety measures protect the rover's hardware while ensuring high-quality sample collection for analysis. ## Instrument Suite Utilization The Nazca target was extensively analyzed using APXS, MAHLI, and ChemCam instruments prior to the drilling process. Following the extraction, the sample was delivered to the CheMin instrument for mineralogical identification. Researchers are currently awaiting the transmission of these critical results from Mars to Earth to finalize their initial geological assessments. ## ChemCam Spectral Analysis ChemCam performed both passive spectral observations and active Laser-Induced Breakdown Spectroscopy (LIBS) on the drill tailings and the hole wall. These measurements provide detailed elemental composition data. The team also utilized LIBS to investigate dark pebbles, such as the target named Puna, to determine if their compositions vary across different locations. ## Pebble Composition Studies The mission team is actively searching for dark pebbles large enough to withstand laser strikes without moving. By measuring these targets, scientists aim to understand their origins and consistency. Targets like Llama are being used to create depth profiles, helping researchers determine if observations remain consistent or vary significantly between different Martian sites. ## Remote Geological Imaging Beyond localized drilling, ChemCam is conducting long-distance Remote Micro-Imager (RMI) observations. These images focus on two prominent buttes, Mishe Mokwa and Cordillera, which have long interested the team. These structures reveal complex sedimentary textures and layers that provide broader context for the geological history of the area surrounding the rover's current path. ## Mission Context and Future The successful completion of the Nazca drill hole marks another milestone in Curiosity’s ongoing exploration of Mount Sharp. By combining localized drilling data with long-range imaging, the team continues to build a comprehensive picture of Martian geology. Future analysis of the Nazca samples will provide further insights into the planet's ancient environment. ## Sources covering this story - https://science.nasa.gov/blog/curiosity-blog-sols-5050-5055-its-nazca-our-49th-drill-hole/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._