Released:
23-Dec-2014 10:00 AM EST
Billions upon billions of neutrinos speed harmlessly through
everyone’s body every moment of the day, according to cosmologists. The bulk of
these subatomic particles are believed to come straight from the Big Bang,
rather than from the sun or other sources. Experimental confirmation of this
belief could yield seminal insights into the early universe and the physics of
neutrinos. But how do you interrogate something so elusive that it could zip
through a barrier of iron a light-year thick as if it were empty space?