https://sattrackcam.blogspot.com/2019/04/
most of the debris will stay on orbit for several weeks to months: by half a year from now, most of it should be gone however, except for a few lingering pieces.
Probability is very low similar to the one in the below article.
Probability is very low similar to the one in the below article.
Odds of hitting is 1 in 300 Trillion https://www.livescience.com/61955-chinese-space-station-reen...