For the New York Times, I reveal details about a critical issue affecting Europa Clipper, NASA’s flagship mission to Jupiter’s ocean moon. From the story:

The equipment issue on the spacecraft could result in a lengthy delay of the mission, Europa Clipper, which NASA classifies as “flagship,” a designation for its most scientifically significant endeavors. Experts say that if the spacecraft launches in October, as scheduled, it may fall short of its scientific objective of assessing whether anything could live on Europa.

At issue is the ability of the transistors, the electric switches that are the building blocks of computer chips and other electronics, to resist the powerful radiation of the Jovian system.

You can read the rest here. And if this subject interests you, perhaps I can interest you in a book about the scientists who spent a decade convincing NASA to fly this mission.