An inter­na­tio­nal team of scien­ti­sts col­la­bo­ra­ting on the T2K expe­ri­ment today anno­un­ced in the jour­nal Nature signi­fi­cant rese­arch results that bro­aden know­ledge of the lack of sym­me­try between mat­ter and antimat­ter. This is a good time to recall that Polish scien­ti­sts from six cen­ters, coope­ra­ting within the Polish Neu­trino Group, are also con­tri­bu­ting to this expe­ri­ment.