[alecdibble]

Actually, the title isn't wrong, it's just misleading. When you read "new form of matter", your first thought was probably liquid, gas, solid, plasma, (something new here?). However, those refer to the "state" or "phase" of matter.

Form: the shape of a thing or person.

Basically, they have "formed" a new type of matter, which is simply the way in which the atoms are arranged in thermodynamic equilibrium. They are not referring to discovering a new "state" or "phase".