The area near clouds is often classified as ‘clear sky’, but a new study demonstrates the potential biases of misclassifying ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

The objects were in the same region of the sky but were 13,000 light-years apart and not related to each other. The details ...

“Even though the sun has set in Gale Crater, the clouds are high enough in the atmosphere that the sun still shines on them, making them seem to almost glow in the sky,” wrote Alex ...