PICTURES: "Night Shining" Clouds Getting Brighter

PICTURES:
<< Previous   5 of 7   Next >>
High-altitude night-shining clouds (such as those seen above in an astronaut's photo) are similar in structure to lower-level clouds--a fact that is "startling," said AIM deputy principal investigator Scott Bailey, of Virginia Polytechnic Institute and State University. That's because the two types of clouds form under such radically different conditions, Bailey said.

AIM's data on night-shining clouds have told scientists a lot about the upper atmosphere, he added: "The processes that control these clouds are very likely similar to the ones that control clouds down near the surface of Earth."
— Photograph courtesy NASA
 
NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS




 

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.