Kavli Session Speakers Tackle the Universe

The Kavli Foundation sponsored a plenary session on the theme "Our Changing Universe" at the APS April Meeting 2015 in Baltimore. From left: Nobel laureate John Mather reviewed the history of research on the cosmic microwave background, Clifford Will discussed high-precision experiments that test general relativity, and Stuart Shapiro described computer simulations of mergers of black holes and neutron stars.