Since Gliese 581 b does not transit, nothing more can be said of it yet; for instance, given that Gliese 581 b orbits alongside two other planets and that Gliese 436 b (thus far) stands alone, their formation must have differed.
B does not transit. This is since Gliese 581. This was what nothing more can be said of it yet. Since Gliese 581 b does not transit given that Gliese 581 b orbits alongside two other planets and that Gliese 436 b (thus far) stands alone, their formation must have differed. This was for instance.