Shining just a trifle less than Sirius, the brightest star in the sky, Mars comes to opposition on Jan. 16 and a few days prior to that, on Jan. 13, will be briefly hidden by the full moon across ...

This week’s first small-telescope target is Sirius B, the companion to the night sky’s brightest star, Alpha (α) Canis Majoris. American telescope-maker Alvin Graham Clark discovered that ...

For the ancient Egyptians, the stars were more than a spectacle; they were essential to life. Astronomy played a key role in ...