Washington Post: Emails made public through a Freedom of Information Act request show the current frustration of some Environmental Protection Agency officials with the White House. The email exchange among EPA officials was prompted by a letter from President Obama to House Speaker John Boehner on 30 August 2011, in which he misstated the cost of one of the EPA’s antipollution rules and failed to highlight the potential benefits of others. In addition, no one in the EPA knew about the letter until after it was sent. In one email, EPA White House liaison Dan Kanninen related what he told White House cabinet secretary Christopher Lu: “In the interest of both accuracy and situational awareness tighter coordination would [have] been appreciated and in this case would have avoided a fairly significant error.” EPA officials have expressed concern that the White House focuses too much on the cost of the proposals and not enough on the potential health benefits to the public.
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.