When you think about stars twinkling overhead, you probably don’t associate them with a color. But the star Sirius shifts through every color of the rainbow. That effect is thanks to the same ...

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 ...

You thought the brightest star is Polaris, right? Or one of the stars in Orion? Nope! Sirius—the “Dog Star”—never seems to get the recognition it deserves. It’s the brightest star in the night sky by ...

Sirius is the bright star on the far left of this photo taken during an Adirondack mountain camping trip in February. A camper's flashlight traces his path in this time exposure. (Patrick Rowan photo) ...

Eyes, snowflakes, stars — I like things that twinkle. Snowflakes glint when struck by sunlight while twinkling stars are an indication of turbulent air. Bumpy air can turn pinpoint stars to fuzzballs ...