Contrails in the blue sky remind us of daily air traffic—and its impact on the climate. However, the effect of contrails on ...

Nothing says "I'm daydreaming" like actually having your head in the clouds. Whether it's your favorite kind of weather or you're just the type to want to wear it on your sleeve, whimsical cloud print ...

Cloud watchers have recently been given record-breaking glimpses of the rarest clouds in the skies. Stunning rippled blue clouds have been forming in the highest reaches of the atmosphere over Europe ...

Winter is an ideal time for watching the Texas sky. The sky is driest and usually cleanest during winter. Reduced water vapor, dust and smoke often leave a pristine, deep blue sky. Clouds are much ...