The most accepted idea for how the early universe behaved, cosmic inflation, remains more an abstraction than full-fledged theory. During a live Google Hangout, three preeminent scientists considered the evidence for and against this contentious concept.
The NSF Physics Division hosted a live hour-long Google Hangout with Michael S. Turner, director of the Kavli Institute for Cosmological Physics (KICP). Turner will be joined by other members of KICP to talk about the exciting science going on at the institute including research on the cosmic microwave background and dark matter.
By changing the nanoscale structure of materials, researchers have created invisibility cloaks and microscopes with unprecedented resolution. Three leaders in these new metamaterials explain how this is possible and consider what may come next.