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Phobos May Have Come from Massive Impact on Mars
- CLGrimes 8y agoIt would make sense that Phobos, like Earth's moon, was the result of an impacting object versus a captured asteroid. I would think that captured objects, such as D-class asteroids would eventually have an orbit degrade over the course of a few millennia.
- saagarjha 8y agoWell, Phobos is predicted to spiral in within 50 million years or so.
- remote_phone 8y agoWouldn’t an impact that large have destabilized Mars’s orbit?
- Zardoz84 8y agoEarth had a bigger impact that result on the creation of the Moon, and we are here.
- remote_phone 8y agoThat’s never been substantiated beyond a theory. The same question would exist for that theory as well.