Experts estimate that millions of women and people of marginalized genders have suffered from intimate partner violence and untreated concussions. The fact that concussions are viewed primarily as sports-related injuries doesn’t just harm those survivors of abuse — it’s also bad for science.
As long as most science writers have been alive, they’ve been able to describe comets as dirty snowballs, a term coined by late astronomer Fred Whipple. Globe science correspondent David Chandler reports that a lot of comets don’t seem to be built anything like a dirty snowball. He describes a hypothesis that some and maybe