News that there's a new inbound comet that's brightening a lot faster than expected: https://phys.org/news/2020-03-comet-atlas.html
On a completely unrelated note, a few articles linking comets to outbreaks of plague and as harbingers of doom:
- https://www.researchgate.net/publication/326160954_Comets_and_Contagion_Evolution_Plague_and_Diseases_From_Space
- https://scholar.google.ca/scholar?q=Comets+as+predictors+of+plague&hl=en&as_sdt=0&as_vis=1&oi=scholart
- A selection from Cultures of Plague
- https://www.vice.com/en_us/article/4x3yeg/a-comet-tried-to-kill-earth-with-the-black-death
You can find a lot more...