Scientists are curious; they like to figure out why things are the way they are. Some study how living things work, others study combinations of materials and their reactions. Particle physicists are interested in how and what the universe is made of and so they search for the most basic building blocks of the world. Right now, quarks are the smallest thing that we know of and everything else is made up of combinations of quarks and electrons.
Scientists from the D zero collaboration stand in front of their detector.