Algol, also known as the Demon Star, loses some 70 percent of its light every three days. It's in Perseus the Hero, now ...

S AN LEANDRO, CA — Monday morning's sky, shortly before the rain starting falling, was a wonder of pastel beauty. Miyo Burnett shared these photos taken from her home. Thank you, Miyo!

It’s visible in the early-morning sky at magnitude 0.4 and rises nearly an hour before the Sun. Roughly half an hour before sunrise, Mercury has reached an altitude of 4° high in the east.

Jupiter will reappear in the morning sky in late July. The first chance to see Mercury, at magnitude -1.5, will be on June 6 when it pairs with Jupiter.

Just before sunrise at 5:45 a.m. on Friday morning, a waning crescent moon will be visible in the Eastern Sky, along with Saturn and Venus. It’s possible Mercury will be visible, but there is no ...

A triple conjunction, appearing to some as a smiley face, will be visible in the early morning sky on April 25 in Michigan. Here's what to know.