NASA closes the book on epic OSIRIS-REx asteroid-sampling mission: ‘I am immensely proud of what we did’
AI-summarised brief · reviewed before publication
On Sept. 30 NASA formally concluded the OSIRAS‑REx mission, the first U.S. effort to retrieve a pristine asteroid sample and return it to Earth. Launched in 2016, the spacecraft spent two years traveling to Bennu, a carbon‑rich near‑Earth asteroid that preserves material from the solar system’s formation over 4.5 billion years ago. Contrary to expectations of a smooth surface, the probe encountered a loosely bound, boulder‑strewn terrain and ultimately collected a sample by driving its head 20 inches into a small crater named Nightingale. The collector lid jammed from the abundant material, prompting engineers to stow the head inside the return capsule. After a tense re‑entry on Sept. 24, 2023, the capsule landed safely in Utah, delivering the largest asteroid sample ever returned.
💡 Why It Matters
- · The returned material offers a rare, uncontaminated window into the primordial chemistry that may have seeded life on Earth, enabling direct laboratory analysis that remote sensing cannot provide.