Curiosity Drilled 48th Rock Sample on Mars

The rover continues its multi-year exploration of Gale crater to map Martian geological history.

Updated on Oct. 4, 2026 in Space

A close-up of a robotic drill bit resting against a textured, layered red rock on the dusty, barren surface of Mars. — NASA's Curiosity rover has successfully drilled its 48th rock sample at the 'Basque Lakes' target in Gale crater, continuing its multi-year geological survey of the Martian surface. AI Illustration. Upload story photo >

NASA's Curiosity rover has successfully drilled into its 48th rock target, known as Basque Lakes, within the Gale crater on Mars. This mission milestone marks another step in the rover's ongoing 38-kilometer trek across the Martian surface.

Why it matters

The analysis of this sample aims to uncover the depositional and alteration history of the local bedrock, providing insights into the environmental conditions of early Mars. This data collection is essential for understanding how the planet's surface evolved over geological time.

Curiosity has traveled a total of 38 kilometers over a 14-year duration while climbing more than 1 kilometer in elevation. The current drilling process included a pre-load stability test before the drill bit engaged the target.

The players

NASA

The United States government agency responsible for the civil space program and long-term planetary exploration missions.

Curiosity

A Mars rover equipped with a suite of analytical instruments designed to assess the habitability of Gale crater.

The details

The rover team deployed the Alpha Particle X-Ray Spectrometer (APXS) — a device that measures the elemental chemistry of rocks — to characterize the target. Simultaneously, the Mars Hand Lens Imager (MAHLI) captured high-resolution images from a distance of 1 centimeter, while the ChemCam instrument fired a laser to vaporize a small portion of the rock for remote chemical analysis. These combined sensor inputs are designed to clarify the ancient environmental processes that shaped the Cache Creek area.

September 25, 2026: Earth planning date for the week's rover activities.
Weekend of Oct 4, 2026: CheMin X-ray diffraction analysis of the drilled sample.
Week of Oct 11, 2026: Delivery of material to the Sample Analysis at Mars (SAM) instrument.

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The Tech Race

This drilling operation is a key component of the ongoing efforts of the NASA Mars Exploration Program to map the geological timeline of the Martian surface. The rover remains in a high-priority exploration zone to establish a chronological record of the planet's environmental shifts.

The rover will remain at its current location for one additional week as the team completes the onsite chemical analysis. Scientific results from the CheMin and SAM instruments will be released to the research community following the scheduled completion of these onboard experiments.

The takeaway

This successful drill operation confirms the continued operational capacity of the rover's hardware after 14 years of exposure to the Martian environment. Observers should track the upcoming results from the CheMin X-ray diffraction analysis to confirm the mineralogical findings from the Basque Lakes target.

What happens next

CheMin X-ray diffraction analysis of the sample is scheduled for the weekend of Oct 4, 2026, followed by the delivery of material to the SAM instrument during the week of Oct 11, 2026.