![](https://static.iono.fm/files/p20/logo_20_20191028_140727_600.jpg)
A black hole awakens and why some people avoid Covid: the week in science
--:--
Ian Sample and science correspondent Hannah Devlin discuss some of the science stories that have made headlines this week, from a glimpse of a black hole awakening, to a new blood test that can detect Parkinson’s seven years before symptoms appear, and a study exploring how some people manage to avoid Covid infection. Help support our independent journalism at theguardian.com/sciencepod