Sailor Moon creator Naoko Takeuchi has worked her magic once again, illustrating a stunning new key visual that highlights ...

The month brings a spectacular lineup of celestial sights—including a rare chance to see Mercury without a telescope and a "micro" new moon. A super “beaver moon” rises behind Monte Prena in Italy’s ...

Uranus’s tiny moon Ariel may have had a subsurface ocean that made up around 55% of its total volume. By mapping craters, crags, and ridges on the moon’s surface, planetary scientists modeled how ...