No criticism to toss1, as this is the title phys.org is rolling with, but this absolutely should say "Quasiparticle that only has mass when moving in one direct

No criticism to toss1, as this is the title phys.org is rolling with, but this absolutely should say "Quasiparticle that only has mass when moving in one direction observed for first time". Phys.org should know better, the very first sentence basically contradicts the title.