Mysterious Night-shining Clouds Spotted Over Northern Europe

Breaking images taken by a new NASA satellite shows extremely detailed images of a mysterious kind of clouds appearing over the Arctic region and moving towards Northern Europe. These clouds shine in the night sky and are moving out of the polar regions and scientists can't explain why.... [ read more >> ]

This image shows one of the first ground sightings of noctilucent clouds in the 2007 season over Budapest, Hungary on June 15, 2007

Image comment: This image shows one of the first ground sightings of noctilucent clouds in the 2007 season over Budapest, Hungary on June 15, 2007
Image credits: Veres Viktor/NASA

This image shows one of the first ground sightings of noctilucent clouds in the 2007 season over Budapest, Hungary on June 15, 2007