The blue sky above the Earth is so integral to the human experience we don't often question it, but there is a scientific explanation as to why the sky is blue.

Occasionally, something that defies the laws of logic and probability hurtles towards the ground, and it can be downright ...

A far riskier idea for influencing clouds to combat global warming is to try to brighten low clouds over oceans by spraying ...

As night fell and a full moon hung between the fragmented clouds, citizen Xiao Zhang suddenly had a whimsical thought: what if the moon were to 'crack' like a shattered porcelain bowl? Would those ...

From a Mars rover selfie to an astronaut's view of the flower moon, these space images will give you a new perspective on our planet and our universe. Freelance writer Amanda C. Kooser covers gadgets ...