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Bennu Samples Reveal Six Sugars, Including First Extraterrestrial Glucose

A peer-reviewed analysis of OSIRIS-REx’s pristine material reduces contamination concerns that have long complicated meteorite studies.

Overview

  • Japan’s Tohoku University-led team reports six sugars in NASA’s Bennu sample, including glucose, galactose and the RNA sugar ribose.
  • Glucose and galactose are identified for the first time in space-derived material, marking a milestone beyond prior meteorite claims.
  • Researchers analyzed about 0.6 grams of the returned sample, extracting organics and purifying sugars under controlled conditions.
  • Ribose found alongside previously reported nucleobases, phosphate and amino acids supports the team’s conclusion that RNA’s components exist in space.
  • The findings were published December 2 in Nature Geoscience, with broader analyses and independent verification expected to follow.