The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

From Jupiter's planet-sized cyclones ... and may explain the blue color." Original image has been replaced. Credit: Mashable Cassini is continuing to explore Saturn and its many moons as its ...

Astronomers have just revealed that a day on Uranus is longer than was previously thought, at 17 hours, 14 minutes and 52 seconds. This is 28 seconds longer than the previous estimate, which was made ...

In the waters off Iwo Jima, a volcanic island in Japan’s Satsuma archipelago, the sea has a distinct green tint. It’s not ...

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

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

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

WASHINGTON — April's skywatching events are in full this month as stargazers will be able to see a pink moon, a meteor shower ...

Being the furthest planet from Earth, we don't know much about Neptune, but recent observations have revealed something glowing in its sky.

A micromoon is a full moon that occurs when it reaches apogee, the farthest point in its orbit from Earth. Sky enthusiasts ...