Asteroid approach, Science operations begin! |
Asteroid approach, Science operations begin! |
Aug 24 2018, 06:48 PM
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#1
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Member Group: Members Posts: 541 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
NASA update on the OSIRIS-REx mission, includes first picture of the asteroid from the spacecraft.
Begins Operations |
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Apr 10 2020, 03:59 PM
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#2
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Member Group: Members Posts: 436 Joined: 14-December 15 Member No.: 7860 |
Quetzalcoatl, are you suggesting some sort of bedding on Bennu or his perent body? That would be an interesting issue.
For me, these rectangular forms and flat plates on this little asteroid are quite mysterious, but - as I wrote - I am not a specialist... On the other hand, on comets, such as Churyumov-Gerasimenko, we have a fractal structure: from microcrystals, through crystals to very large structures - everything reflects the original way of forming. Maybe in these two boulders on Bennu we actually see some "huge, original crystal structure", but it seems to me quite unlikely... I think the biggest problem is that we really know very little about the nature of these rocks, their structure, origin, mechanical properties, mineralogical composition, etc. That is why we need samples of Bennu rocks in Earth's labs so much. Having them in our hands (with a little luck there will also be tiny fragments similar in properties to these interesting boulders) we will solve many puzzles. From Wikipedia - Orthogonal joint sets on a bedding plane in flagstones, Caithness, Scotland, Earth and negative picture: |
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Apr 10 2020, 06:52 PM
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#3
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Member Group: Members Posts: 104 Joined: 3-February 20 From: Paris (France) Member No.: 8747 |
I think the biggest problem is that we really know very little about the nature of these rocks, their structure, origin, mechanical properties, mineralogical composition, etc. That is why we need samples of Bennu rocks in Earth's labs so much. Having them in our hands (with a little luck there will also be tiny fragments similar in properties to these interesting boulders) we will solve many puzzles. On that point, I completely join you. I am too impatient and it is very likely that the analysis of the samples will change our knowledge. They may also be able to shed light on our questions?... |
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Lo-Fi Version | Time is now: 23rd June 2024 - 08:43 PM |
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