Washington Post: North Korea’s announcement that it plans to launch a satellite into orbit later this month has stirred up unease in many countries. In the US, the plan has been condemned by the Obama administration as a violation of a United Nations Security Council resolution that prohibits North Korea from conducting any test or launch using “ballistic missile technology,” writes Chico Harlan for the Washington Post. Meanwhile, in South Korea, there are worries that the launch could dramatically affect the upcoming South Korean presidential election on 19 December.
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.