THE DISCOVERY DESK
Stars & Deep Space
Explore stars, nebulae and the tools astronomers use to study deep space, with clear guides to telescope images, measurements and what they reveal.
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Hubble vs. Webb: Why the Same Pillars of Creation Look So Different
Hubble and Webb photographed the same Pillars of Creation, yet the images look nothing alike. The reason is the light each telescope sees.
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How Astronomers Measure Stars: Distance, Size, Mass and Age, Explained
No one has ever visited another star. Here’s how astronomers measure a star’s distance, temperature, size, mass and age using nothing but its light.