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Curiosity Rover

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Curiosity Rover

NASA Mars Science Laboratory rover, landed August 2012 in gale-crater to assess past habitability of Mars. Operated by nasa-jpl. Sister mission to perseverance-rover (which landed at Jezero Crater in 2021).

Mission

Curiosity carries the sample-analysis-at-mars (SAM) instrument suite, which combines a gas chromatograph, quadrupole mass spectrometer, and tunable laser spectrometer to analyze rock samples in situ.

2026 organic-molecules result

In April 2026, an international team led by amy-williams (University of Florida) and including jennifer-eigenbrode of nasa-goddard published in Nature Communications that SAM detected more than 20 organic molecules in Glen Torridon mudstone drilled in 2020 — including a nitrogen-containing compound structurally similar to DNA-precursor bases and the sulfur-bearing aromatic benzothiophene. The detection used a one-shot TMAH wet derivatization run, the first such chemistry experiment performed on another planet. SAM carried only ~two cups of TMAH, forcing a high-stakes single-site choice (src-curiosity-mars-life-molecules-2026-04).

The team cannot distinguish biological, geological, or meteoritic origins; resolution requires mars-sample-return. The TMAH approach has been adopted for ESA’s rosalind-franklin-rover (Mars, 2028 launch) and NASA’s dragonfly-mission (Titan, 2027 launch) per the TIME-published follow-up by jeffrey-kluger (src-mars-organics-fresh-clues-2026-04). Kluger’s piece adds explicit exogenous-organics context: 2025 Nature Astronomy findings of 14 protein-forming amino acids in Bennu samples, and hexamethylenetetramine in the Murchison meteorite (1969). amy-williams frames the result as consistent with a combined “in-situ + exogenous” origin-of-life model.

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