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Water on Asteroid Bennu?

11 Dec 2018, 05:42 UTC
Water on Asteroid Bennu?
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A new look at asteroid Bennu from the OSIRIS-REx spacecraft courtesy of: NASA, Goddard, and the University of Arizona. If you have not seen it there is a very good animated version of Bennu’s rotation, be warned if you have a slow connection, it is a large file; just be patient it is worth the wait. Video at asteroidmission.org.
The big news, really big news is there may be water in the clays on Bennu:
NASA: Recently analyzed data from NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission has revealed water locked inside the clays that make up its scientific target, the asteroid Bennu.
During the mission’s approach phase, between mid-August and early December, the spacecraft traveled 1.4 million miles (2.2 million km) on its journey from Earth to arrive at a location 12 miles (19 km) from Bennu on Dec. 3. During this time, the science team on Earth aimed three of the spacecraft’s instruments towards Bennu and began making the mission’s first scientific observations of the asteroid. OSIRIS-REx is NASA’s first asteroid sample return mission.
Data obtained from the spacecraft’s two spectrometers, the OSIRIS-REx Visible and Infrared Spectrometer (OVIRS) and the OSIRIS-REx Thermal Emission Spectrometer ...

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