EarthSky | Media we love: The Age of Miracles earthsky.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from earthsky.org Daily Mail and Mail on Sunday newspapers.
EarthSky | Media we love: Altered Carbon, The End of Everything earthsky.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from earthsky.org Daily Mail and Mail on Sunday newspapers.
People watching the skies above Allegheny County and surrounding areas Thursday evening for signs of potential thunderstorms instead were treated to vistas of clouds resembling fluffy cotton balls. Known as mammatus clouds, they are a rare example of clouds that form in sinking air instead of rising air, according to