Astronomers have discovered a massive hydrogen cloud, known as Eos, shining brightly in ultraviolet light near our solar ...

Weather officials say different types of clouds can tell you what kind of weather to expect. Here's a look at the different ...

When the bubbles were discovered in 2010, astronomers thought they could have been formed by newborn stars ... clouds of relatively cool gas that seem to flit around within the bubbles, high above ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator ...

Dominant cosmological theories posit that stars are formed in molecular clouds that are sufficiently large and dense that it has the conditions necessary to create new stars. These same experts ...

Although there is no astronomical darkness from our latitude now, there are still plenty of things to see in the night sky.

Part of that is due to its distance from the star (an average ... These twilight clouds aren’t just a rare sight—they may be only capable of forming above specific regions of Mars.