Daily Mail: The cold war is over, and the possibility of nuclear Armageddon is no longer the potent threat it once was. However, the approximately 23 000 nuclear warheads still in existence are a potential danger, albeit a less immediately compelling one. For those curious about what the consequences of a nuclear strike could be, Alex Wellerstein of the American Institute of Physics has created a Google Maps mashup that allows users to drop a virtual nuclear bomb on any destination in the world and then see the areas affected by fireball, nuclear radiation, air blast, and thermal radiation. Wellerstein developed the application to help his students understand the actual implications of nuclear warfare.
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.