迷失在时空之中：看见不可见的光

Seeing the invisible The parts of the electromagnetic spectrum we can’t see with our eyes reveal much about the cosmos, says astronomer Emma Chapman M Y FIRST encounter with invisible light came in my early years, and I thought it was magic. Radios filled every room of my childhood home: the kitchen, bedrooms, even the hallway. I would slowly turn the dial on older sets, listening as music and voices emerged from the static, before fading away again as I surfed the radio waves. Long before I understood I was tuning in to part of the electromagnetic spectrum, I felt the wonder of sensing something my eyes couldn’t see. …