Science1 hSeptember 29, 2026, 20:10

Asteroid Bennu Formed at the Boundary of the Inner and Outer Solar System

Researchers at ETH Zurich analyzed 0.5 g of the Bennu sample returned by OSIRIS-REx and found the asteroid formed near the water-ice line, at the boundary between the inner and outer solar system. The finding contradicts the earlier assumption that Bennu originated in the distant region where comets form.

Gizmodo

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Asteroid Bennu Formed at the Boundary of the Inner and Outer Solar System

About 120 g of Bennu material landed on Earth on September 24, 2023
ETH Zurich received 0.5 g of the asteroid sample for analysis
Bennu formed near the water-ice line, mixing inner and outer solar system material
Jupiter likely acted as a barrier during Bennu's formation

#NASA#OSIRIS-REx#Bennu

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