The seventh asteroid found, Iris, was last seen with poor future prospects. Now it appears it has water. So does 20 Massalia.
Now: these two are S-type. The high densities ~3 and 3.5 means neither is a loose heap of rubble. Such probably formed about where Vesta is at, maybe even Mars. I was not expecting water out there. But I am glad to see it! I assume other C-types and comets delivered that water. Both are cold-enough that such might stay there.
No comments:
Post a Comment