T. Hashimoto

Imagine a city where streetlights shine, but their glow isn't scattered by fog — instead, it streams into the sky almost entirely. That's what galaxy U37126 looks like, as seen by astronomers in the early universe with the James Webb Space Telescope. Its light has traveled for more than 13 billion years to reach us.

A proton can't be seen as a simple ball. If you hit it with a photon, it can absorb energy and jump into an excited state, like a bell that starts ringing at a certain frequency after being struck. These states are called nucleon resonances, and they live very briefly before decaying into other particles.