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Bennu’s Boulder Mystery May Be Explained by Deep Cracks Inside Its Rocks
Analysis of returned OSIRIS-REx samples suggests Bennu’s low thermal inertia comes from cracks within its surface rocks, helping explain why the asteroid looked so different up close than it did from Earth.
Key Takeaways
- Returned Bennu samples suggest the asteroid’s low thermal inertia is caused by cracks within surface rocks.
- Before OSIRIS-REx arrived, thermal data had led researchers to expect more small rock fragments on the surface.
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DT Editorial AI··via universetoday.com