The vernal equinox occurs as Mercury stands still in Pisces and several of Jupiter’s moons transit in the sky this week.

Astronomers explain the science behind March’s Blood Worm Moon, a total lunar eclipse turning the moon red overnight.

For a few days around this date, we can try spotting Venus in bright twilight both immediately before sunrise and right after sunset. It rapidly zooms into the morning sky, reaching an angular ...

Readers’ photos celebrate sunrises and sunsets, when the light is the most pleasing. Fifty-one photos were sent in; here are the top picks.

From poets and philosophers to scientists and spiritual leaders, everyone has been captivated by the beauty and symbolism of ...

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation ...

Fajr is one of Islam's five obligatory daily prayers. During Ramadan, Muslims wake up before Fajr to eat before starting ...

Observers could see up to seven planets line up in the sky after sunset on Friday, but you may need a telescope to see them ...

It's almost time to spring forward for Daylight Saving Time. Here's how the change will affect Denver sunrises and sunsets.