2 comments

[ 3.1 ms ] story [ 13.1 ms ] thread
> they’re really quite fresh—no more than 400 million years old, and potentially less than 100 million years old

It’s always awesome to me how young things in our solar system are in the grand scheme of the whole universe

Stupid comment. Why do we know that the ice must come first?

What if the dust was first and much older and at some moment started to attract and collect water from a comet tail or atmospheric water escaping to the space and turning into ice (in a similar way as how desert stones in the dunes collect mist and make dew)