We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

WASHINGTON — April's skywatching events are in full this month as stargazers will be able to see a pink moon, a meteor shower and a cosmic "smiley face" in the night sky. The celestial lineup comes ...

The planets in the night sky are always shifting in and out of celestial ... making for a striking color contrast. Uranus will be high in the southwest, north of the Hyades star cluster and ...

April's full moon is commonly called the Pink Moon, although it won't actually appear pink in color. The name is linked to ...

This April, the skies put on a dazzling show – watch planets like Jupiter, Venus, and Mars glide across morning and evening ...

April skies feature close planet pairings, a bright meteor shower, and stunning views of the ancient star cluster M3.

Venus becomes the brilliant “Morning Star” in the east before dawn, the Lyrids Meteor Shower takes place and the Moon has ...