The upper stage of a SpaceX Falcon 9 rocket treated stargazers in Europe to a surprise display on the night of June 23, when ...

Noctilucent clouds, often called “night-shining clouds,” are the highest clouds in Earth’s atmosphere. They form in the mesosphere, about 76 to 85 kilometers (47 to 53 miles) above the ...

At night, clouds trap heat, ... The tallest clouds in the sky are the mighty cumulonimbus clouds, which can stretch up to an astonishing 50,000 feet, or 15,240 meters, high.

Northern lights and glowing noctilucent clouds collide in a rare night sky show over Alberta (photo) Related: Astrophotography for beginners. How to shoot the night sky .

Today marks the start of Northern Hemisphere summer, and also offers a chance to view night-glowing clouds if you’re lucky.

This month's night sky is filled with close-range meteors, swirling nebulas, and prime stargazing conditions. Here’s when you should be looking up.

They Glow After Sunset In The Northeastern Night Sky. Noctilucent clouds can only be seen at twilight, shining after sunset, but they are never guaranteed. Visible as vast, ...

Fireflies need darkness to communicate. Males perform an airborne dance while flashing their abdominal lanterns in a pattern ...

This week, sky watchers in the upper United States, Canada and Europe have spotted a flurry of shimmering, ghostlike wisps in the night sky. The blue-silver streaks shine brightly only after the ...

IN NATURE, June 28 (p. 196), Mr. Backhouse notes the appearance of illuminated clouds to northward at night. Similar clouds are seen from here on almost every clear night near the summer solstice.

Night-shining clouds are only visible when the sky is clear of lower clouds, and at the darkest hours of the night. To see them, go outside at around midnight and look north.

The Magellanic Clouds, ... glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years away, ...