Please see this video after 50th minute. It shows that Dimorphos has approximately doubled in size. This is an animation compressed 500 times according to the a

Please see this video after 50th minute. It shows that Dimorphos has approximately doubled in size. This is an animation compressed 500 times according to the authors, so it seems that this process happened quickly. It can be seen from it that such an increased size remained unchanged, which indicates the "hanging" of the ejection near Dimorphos. The fact that it did not fly far indicates the relatively large size of the ejected fragments.