Staff Writer Jocelyn Kaiser joins Sarah to talk about a recent Science paper describing the results of a large study on a blood test for multiple types of cancer. The trial’s results suggest such a blood test combined with follow-up scans may help detect cancers early, but there is a danger of too many false positives.
And postdoctoral researcher Timo Reinhold of the Max Planck Institute for Solar System Research joins Sarah to talk about his paper on how the Sun is a lot less variable in its magnetic activity compared with similar stars—what does it mean that our Sun is a little bit boring?


As states grapple with the question of when it will be safe to reopen businesses and relax social distancing, there’s increasing urgency to better understand who’s immune to Covid-19. Does having the virus and recovering mean you can’t get it again, or at least that you can’t be reinfected for some time?
This week, how the ‘sniff-response’ can help clinicians determine a patient’s state of consciousness, and how vaccines could help drive down antibiotic use.
A selection of three essential articles read aloud from the latest issue of The Economist. This week, how will


Benjamin Thompson, Noah Baker, and Amy Maxmen discuss the role of antibody tests in controlling the pandemic, and how public-health spending could curtail an economic crisis. Also on the show, the open hardware community’s efforts to produce medical equipment.