The brightest star in the nighttime sky, Sirius, or the Dog Star, greatly outshines its white dwarf companion, Sirius B. At 8.6 light-years away, Sirius B is the nearest known white dwarf star to ...
Mars has now risen to the rank of the fifth brightest object in the pre-midnight evening sky, rivaled only by the moon, Venus, Jupiter and the brightest of all stars, Sirius.