Less than two weeks later, on June 25, reports began to circulate of a second nova blossoming in the southern night sky, this ...

Exploding stars V462 Lupi and V572 Velorum are best seen from the Southern Hemisphere. One has been spotted from the United States.

Sky This Week is brought to you in part by Celestron. Friday, July 4Mercury reaches its greatest eastern elongation (26°) ...

In a rural sky dense with stars, the brightest serve as helpful signposts to orient yourself. ... Capella is a yellow star, like our own sun—and it’s the brightest yellow star in the night sky.

A dramatic cosmic event, a rare dwarf nova that suddenly brightened by a factor of 2,500, has been discovered with the help ...

At dusk on a late October night in 1408, something mysterious lit up the skies above China. Ming Dynasty astronomers who ...

The yellow-orange 1st-magnitude Pollux (Beta [β] Geminorum), at only 34 light-years distant, is the closest giant star to the Sun, and the brightest gem in Gemini the Twins.

Known as the “dog star” for its place amid the constellation Canis Major, Sirius is the brightest star in the night sky. The vivid star is one of the nearest to Earth, at just 8.6 light-years ...