Secrets of Asteroid Bennu with Harold Connolly Jr.

The episode covers NASA's OSIRIS-REx mission to asteroid Bennu, focusing on the scientific value of carbonaceous chondrite meteorites, the presence of ancient water and organic compounds, and the importance of sample return for understanding early solar system chemistry. Harold Connolly Jr. explains how Bennu's composition informs planetary defense models and the origins of life. The discussion includes technical challenges in preserving volatile materials and interpreting geologic context from asteroids.

You get rare insight into how pristine asteroid samples reshape our understanding of Earth's chemical origins and planetary defense, straight from a lead mission scientist.

1. 01Carbonaceous chondrite asteroids like Bennu contain 4.567-billion-year-old water and prebiotic organic compounds, offering clues to life's origins.
2. 02Sample return missions are critical because Earth-contaminated meteorites degrade quickly, making pristine extraterrestrial samples essential for accurate analysis.
3. 03Asteroid composition affects orbital predictions, meaning detailed knowledge of Bennu's makeup improves planetary defense forecasts for potential Earth impacts in 2182.