We’ve seen the remains of a collision between two planets in a distant star system – and these planetary smash-ups are thought to be surprisingly common
Source:
https://www.newscientist.com/article/2223180-star-systems-full-of-planetary-smash-ups-are-bad-news-for-alien-life/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home