Elizabeth Ryland fields questions from the audience after giving a public lecture,"Searching for Trolls Under the Electron Bridge," in SLAC's Kavli Auditorium. SLAC public lectures are designed to give non-scientists unique insights into the workings of our universe.
In this conceptual art, an electron and positron collide, resulting in a B meson (not shown) and an antimatter B-bar meson, which then decays into a D meson and a tau lepton as well as a smaller antineutrino.
View of the BaBar detector (about six meters in diameter) with staff scientist Michael Kelsey analyzing problems during a shutdown of SLAC’s PEP-II electron-positron storage rings.
When stars explode, the supernovas send off shock waves like the one shown in this artist's rendition, which accelerate protons to cosmic-ray energies through a process known as Fermi acceleration.