Catch up on the most important updates from this week.
Vaccines can prevent symptoms, but some can also keep people from spreading infection. That’s critical, and no one knows if the new vaccines do it….
Just how much material did OSIRIS-REx collect from Bennu? The method relies on something called the moment of inertia, and you can replicate it with a fan and a penny….
Who gets priority when Covid-19 shots are in short supply? Network theorists have a counterintuitive answer: Start with the social butterflies….