Twenty-five years ago this week, NASA held its collective breath as seven astronauts on space shuttle Endeavour caught up with the Hubble Space Telescope 353 miles above Earth.
Blackboards filled with mathematical equations and scientific machines as large as cathedrals can awe, and sometimes overwhelm. But Koosh balls are another matter.
Neutrino masses are extremely difficult to measure. While we know precisely how much an electron weighs, we have little information on the mass of its neutral partner, the electron neutrino. The same is true of the muon neutrino and tau neutrino.
At a recent symposium honoring former Stanford Linear Accelerator Center Director Jonathan Dorfan, dinner guests were treated to a course of the unexpected.