Antiproton

{ "text": [ "Some tiny bits are like twins.

", "They are the opposite of our bits.

", "These bits can be found in space. ", "They help us learn about our world. ", "It is a big mystery! ", "Can you imagine tiny twins?" ], "media": [ "File:Quark structure antiproton.svg", "File:Photocopy of photograph (original print located in LBNL Photo Lab Collection). Photographer unknown. October 6, 1955. BEV-938. ANTI-PROTON SET-UP WITH WORK GROUP; E. SEGRE, C. HAER CAL,1-BERK,4-34.tif" ] }