William Herschel's sensors let us see the invisible Universe | Aeon Essays
Briefly

The article discusses the limitations of human vision, which only detects a fraction of the electromagnetic spectrum, specifically the visible light range. By contrast, technological advancements, especially through instruments like the James Webb Space Telescope (JWST), have allowed us to explore the infrared spectrum, revealing vast, unseen aspects of the Universe. Over the past three years, JWST has captured spectacular cosmic images by interpreting infrared data, showcasing both the beauty of space and the evolution of our technological capabilities.
The human eye is limited to just one octave of visible light, while technology unveils layers of reality through sensors that detect infrared radiation.
The JWST reveals cosmic wonders in infrared, showing a hidden Universe beyond the visible spectrum and highlighting advances in our ability to explore space.
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