Asteroid Bennu's Sample Delivers Another Surprise

Comparing Bennu Samples with the Murchison Meteorite

Astronomers and chemists analyzing samples returned from asteroid Bennu have uncovered exciting new findings. Researchers directly compared these asteroid samples with the famous Murchison meteorite, accurately measuring the presence and amount of the amino acid β-alanine in both space rocks.

Molecular-Level Isotope Analyses and New Techniques

Using innovative analytical techniques, scientists were able to measure not just overall isotopic compositions, but isotopic differences between individual atoms within the very same molecule. These detailed molecular-level measurements provided unprecedented insight into atomic structures and chemical origins.

The Protoplanetary Disk and Origins of Life's Precursors

The results demonstrate that some of the same chemical precursors to life formed under diverse conditions and at different locations across the early protoplanetary disk. This discovery refines scientific models regarding how organic molecules originated and distributed throughout the early solar system.