Unusual cloud formations—rippled, twisted, and glowing—are appearing more frequently, sparking curiosity and concern. Experts believe shifts in weather patterns, air pressure, and climate change may ...

The moon and planets will align to create a smiley face in the night sky just before sunrise on Friday morning, with Saturn ...

A rare alignment of planets and our moon will produce a celestial old-school emoticon in the pre-dawn eastern sky on April 25 ...

Venus and Saturn will be in just the correct spot in their revolution around the sun to match up with the waning crescent ...