April’s planetary parade has fewer planets. Only four will line up: Venus, Saturn, Mercury and Neptune. April's parade of ...

Four planets in the solar system are about to appear in alignment in the night sky. Here's how stargazers will be able to see ...

For that event, you had to get up before sunrise, because all of the planets were visible at dawn. So 4.5 years had elapsed between the last "great alignment" and the one that just occurred.

Jupiter is magnitude -2.1 this month. Sirius is magnitude -1.5. This giant planet is creeping eastward in relation to background stars. At dusk from mid-northern latitudes during April you'll see ...

(CNN) – A rare celestial event is underway. From now through Friday, the planet Venus will be visible in both the morning and evening skies above the Northern Hemisphere. This happens a few days ...

(CNN) – A rare celestial event is underway. From now through Friday, the planet Venus will be visible in both the morning and evening skies above the Northern Hemisphere. This happens a few days ...