An international team of scientists has revealed how rogue rings of DNA that float outside of our chromosomes – known as extrachromosomal DNA, or ecDNA – can drive the growth of a large proportion of glioblastomas, the most common and aggressive adult brain cancer.

How Much Time Off Should You Take From Throwing After the Baseball Season
We discuss what the science shows about how much time off baseball pitchers should take from throwing in the offseason.