Sirius, also called the Dog Star, is the brightest star in Earth's night sky. Shining more brilliantly than any other star visible from Earth (excluding our sun, of course), Sirius is outshone only by ...

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 ...

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 ...

Our January night sky offers up some really amazing sights and some that are better viewed from remote locations. What about something that is equally fascinating and visible from the brightly lit ...

Step outside this week around 9 p.m. local time and look about one-third of the way up from the southern horizon, and your eyes will be met by a dazzling celestial solitaire: Sirius, the Dog Star. It ...

DIAGRAM OF THE DIFFERENT STARS: The Hertzsprung-Russel Diagram of star color and temperature. Courtesy of the European Space Agency and modified by the column author. The color of stars has been noted ...

Since 1986 I have had an affiliation with the Hayden Planetarium in New York. My "official" title there is "Associate and Guest Lecturer." Indeed, through all of these years I given scores of ...

Everyone knows what the brightest star is, right? So what are you going to suggest? The North Star? Most people seem to think that, but most people would be wrong. In fact, the North Star—called ...