A sea of cloud, with only the tops of the highest mountains poking through like islands, is one of the most breathtaking mountain sights. Here’s how to up your chances of seeing a cloud inversion.

Astronomers have discovered a vast cloud of gas and dust stretching out for a staggering 200 light-years and lurking in a poorly explored region of the Milky Way. The structure, named the Midpoint ...

"No one had any idea this cloud existed until we looked at this location in the sky and found the dense gas." Astronomers have discovered a vast cloud of gas and dust stretching out for a staggering ...