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The new images — taken from as close as 17,000 miles (27,000 kilometers) on approach — revealed Ultima Thule as a "contact binary," consisting of two connected
by ilamont 8y ago
The new images — taken from as close as 17,000 miles (27,000 kilometers) on approach — revealed Ultima Thule as a "contact binary," consisting of two connected spheres.
Are these common in the asteroid belt or as smaller moons of the outer planets?
- InclinedPlane 8y agoAs far as we can tell, they are pretty common. But we haven't visited enough objects to have firm statistics.