Science: This week, at a meeting of the governing council of the multibillion-dollar ITER fusion project, which is under construction in France, new estimates were presented that suggest the project will cost $13 billion and won’t begin operations until the late 2020s. That moves the go-live date at least six years later than previously projected, and about a decade later than initially projected. The council also asked that the seven international partners—China, the European Union, India, Japan, Russia, South Korea, and the US—all provide additional funding for the project. However, after the council meeting concluded today, the delegates said that they would all be conducting their own reviews of the new schedule and funding requests before any long-term decision is made. The council did approve the proposed construction schedule for the next two years.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
Get PT in your inbox
PT The Week in Physics
A collection of PT's content from the previous week delivered every Monday.
One email per week
PT New Issue Alert
Be notified about the new issue with links to highlights and the full TOC.
One email per month
PT Webinars & White Papers
The latest webinars, white papers and other informational resources.