| The world, you might argue, does not need yet another subatomic particle. |
| Like a quasar, a black hole or a subatomic particle, the planetarium defies easy comprehension. |
| Seeing a subatomic particle, such as an electron, is not so simple. |
| Thomson had discovered the first subatomic particle, the electron. |
| Higgs published a paper predicting the existence of a subatomic particle that came to be known as the Higgs boson. |
| However, as a subatomic particle the electron is also a quantum-mechanical object. |
