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 ...

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

If you're lucky enough to have clear skies tonight, you can catch a "mini planet parade" as Mars and Jupiter appear alongside ...

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.

Its proximity to Earth – about 50 to 70 million kilometers from mid to late April – means we catch more of its light, so it ...

(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 ...

"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those ...

(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 ...

Jupiter: Spot Jupiter in the evening sky with a telescope, although with the sun setting later, it'll become more difficult ...

A micromoon appears 5.9% to 6.9% smaller than an average full moon and 12.5% to 14.1% smaller than a supermoon, which happens when the full moon is at its closest point to Earth. Why is the April ...