Does that mean we finally get to know how they look like?
I always imagined them as some kind of "plants", given how they're described to replicate/combine and how they're dried up and stored and later rehydrated...
In The Redemption of Time,
Baoshu offers his view.
It’s “only” a fan fiction, albeit approved by Liu Cixin.
It nonetheless gives a nice — and as expected — unexpected description of them.
For me, I pictured them as the water aliens from Futurama's "My Three Suns".