Chicago’s proposed transit overhaul leaves key problems intact, critics warn—jeopardizing integration, equity and oversight of multibillion-dollar projects.

Electron–phonon interactions in a material have been modelled by combining billions of Feynman diagrams. Using a modified form of the Monte Carlo method, Marco Bernardi and colleagues at the ...

The Current Radar map shows areas of current precipitation (rain, mixed, or snow). The map can be animated to show the previous one hour of radar.