View Full Version : What is Airglow?

2011-Oct-08, 06:10 PM
In many of the photos that we have featured recently from astronauts aboard the International Space Station, a glowing greenish-yellow band can be seen just above Earth’s limb. I’ve been asked before what this is, so I thought I’d explain it here. This is a phenomenon known as “airglow”. (...)Read the rest of What is [...]

More... (http://www.universetoday.com/89688/what-is-airglow/)