From ancient stargazing to modern pet safety — here’s how this phrase got its name and why it still matters today.

The dog days of summer” may seem to refer to the hottest days of the year, but the origin of the phrase is actually a little ...

Sirius, one of the nearest stars to our solar system, will be briefly occulted by a three mile-wide asteroid called 4388 Jurgen, but only for those inside a narrow path through Mexico, US, and Canada.

The brightest star in the night sky is Sirius, also known as the "Dog Star." Here's when, where and how to see it—and glimpse its rainbow of colors.

The “Dog Days” of summer ended earlier this month and now you can find Sirius, the Dog Star (because it’s in the constellation Canis Major, “The Great Dog”), in the morning sky.

Duane “Dog the Bounty Hunter” Chapman is the head of a booming brood that contains 13 children from six different relationships. Scroll down to meet his family: Christopher Michael Hecht Dog became a ...