Every star you see at night broadcasts its temperature through color, yet one shade sits permanently off the menu. The visible spectrum runs from deep red through orange, yellow, white, and blue, each ...

Professional and amateur astronomers post amazing photos of the sky. A colorful, star-filled Milky Way is often shown rising above a landscape, and photos from the Hubble Space Telescope reveal ...

The color of stars has been noted from antiquity and the names of many stars reflect their visible color. The red Antares is the heart of the scorpion. The brightest star Sirius is derived from the ...

I’ve been gazing skyward now for nearly six decades, and I’m still amazed at all we can see if we just take the time to look up into a dark sky. Add to that a small backyard telescope and the ...

A massive star nearing the end of its life has donned a new face, changing color and becoming hotter in a surprisingly short amount of time. The dramatic transformation may be indicative of its ...

This month, we’ll talk about the relationship between a star’s spectral class and its color. But first, I have a question for you: Which constellation has the most stars of spectral class K9? The ...