As night falls on the Atacama desert in northern Chile four giant telescopes turn their gaze towards the star-strewn heavens.

The Universe is full of dust, and a striking new image from the Hubble Space Telescope highlights just how important it is.

Clouds have always been a source of wonder and fascination, sparking imagination and curiosity about the skies above. Among ...

For gravity wave clouds to form, the atmosphere must be in a relatively stable state. Under calm conditions, the air exhibits vertical motion, where warm (less dense) air rives, and cool (more dense) ...