AI Insight
Contrary to common belief that green stars don't exist, research reveals that dead stars (white dwarfs and neutron stars) can actually appear green, as well as pink, purple, and other colors across the spectrum. Living stars emit light across a broad range of wavelengths that blend together, making true green impossible for our eyes to perceive, but dead stars have different emission properties that allow for these unusual colors. The rainbow of colors in dead stars results from their unique physical properties and the specific wavelengths of light they emit.
Why it matters
This finding corrects a long-standing misconception in astronomy and stellar physics. Understanding the color properties of dead stars provides insights into their composition, temperature, and the physics of extreme stellar remnants, which could improve astronomical classification systems and our broader understanding of stellar evolution.
Understand the Science
The colors of dead stars come in a surprising rainbow of choices
Source: Green stars do exist—and others shine pink or purple, too