Science: By sequencing the nuclear genome of an ancient finger bone, researchers have confirmed the discovery of a new type of human that lived in the Altai Mountains in southern Siberia more than 30 000 years ago. The long-lost group of people, which researchers are calling “Denisovans” after the Denisova cave in which the bone was found, lived at roughly the same time modern humans and Neandertals were in the region, and it appears to be more closely related to Neandertals than us. Although the Denisovans went extinct, they were widespread enough in Asia to interbreed with modern humans before they disappeared, writes Science‘s Ann Gibbons.
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.