A cluster of eerily circular holes recently appeared in the clouds above Florida ... In a 2011 study, researchers used satellite images and flight data to prove that planes were responsible.

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

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the rover's Mastcam, which NASA's Jet Propulsion Laboratory compared to the rover's ...

Amid all these speculations and questions, it seems like some netizens are all set to add a new ‘location’ to the list of possible places where aliens might be living; above the clouds!