astronomy – How do astronomers use spectroscopy to study stars?

The universe, a vast expanse filled with dazzling stars, enigmatic galaxies, and uncharted cosmic phenomena, has captivated humanity for centuries. Yet, despite our awe, much remains shrouded in mystery. Enter the powerful tool of spectroscopy—a technique that allows astronomers to decode the light emitted or absorbed by celestial bodies, revealing their composition, temperature, distance, and … Read more