Bright blue-white noctilucent clouds danced over the town of Nykøbing Mors in Denmark just before dawn, just when this spectacular photo was taken. Night sky photographer Ruslan Merzlyakov ...

THE bright cirrus-like clouds are very ... there has been a single night on which the northern sky has been quite free from lower clouds on which they have not appeared more or less; sometimes ...

X/@UHN_Plus The fireball was seen streaking across the atmosphere, illuminating the overcast clouds in the night sky with a bright neon blue color for about 7 seconds. X/@UHN_Plus The meteor was ...

During the week ahead, watch for Mars in the evening sky as it moves its way slowly night by night, left to right, above the bright star Regulus in the constellation of Leo, the Lion, situated above ...

We had a special treat Wednesday morning due to noctilucent clouds that are rarely seen in the Florida sky. Noctilucent clouds ... characteristic iridescent blue hue. This striking color arises ...

It’s mostly lasers and big black boxes. But the behavior of these lab-based cloud particles mimics the behavior of cloud particles in massive sky-sweeping clouds, only in miniature. “Of course, we don ...

nebulous clouds and dark, obscuring dust. A cluster of small, bright blue stars can be seen in the bottom-left corner, while many much smaller stars are scattered across the backdrop of space.