Early Tuesday morning, a delicate, wispy cloud type rarely seen formed over western Montana, lighting up the pre-dawn sky.

One of the largest structures in the sky, as seen from our perspective, has only just been discovered. It’s an enormous cloud of molecular hydrogen gas that may one day condense down into stars.

A vast star-forming cloud of molecular hydrogen that is one of the largest single structures in the sky has been discovered hidden near the solar system.. The crescent-shaped cloud—which its ...

It's bright largely because of its global clouds of sulphuric acid, ... Venus, the bright "Morning Star," shines brilliantly in the pre-dawn sky this weekend, close to a much dimmer Saturn.

Astro Bob: Ease into summer with fireflies, noctilucent clouds and a cool conjunction ... NLCs appear very low across the north-northwestern sky at dusk and in the north-northeastern sky at dawn.

Named Eos, after the Greek goddess of the dawn, the cloud was found lurking some 300 light-years from our solar system and is as wide as 40 of Earth’s moons lined up across the sky.

9 night sky events to see in June, from a strawberry moon to interstellar clouds. This month's night sky is filled with close-range meteors, swirling nebulas, and prime stargazing conditions.