One of the most fascinating astronomical phenomena is the blood moon, an event that occurs during a total lunar eclipse when the Moon takes on a reddish hue. This celestial spectac ...

A partial solar eclipse takes place March 29, but it is strictly a Northern Hemisphere event. The famous Greek astronomer Hipparchus introduced the magnitude scale more than 2,000 years ago. He ...

Astronomers, both professional and amateur, are obsessed with stellar magnitudes. For professional astronomers, stellar ...