Home
|
Textversion
|
Imprint
Deutsch
You are here:
Home
:
International Year of Astronomy - IYA2009
News Archives until 2010
Portal News
Press releases
Aeronautics
Space
Transport
Energy
Security & Defense
Missions and more
Sites
Artikel versenden
Why is the sky alight?
There have been accounts of what are known as auroras – the eerie reddish and greenish flickering of light in the night sky – for the past 2000 years. The Vikings interpreted the luminous effect as being the shimmer of moonlight on the armour of the ghostly Valkyries as they rode across the sky. But why do auroras occur?
Send article link to:
Your e-mail address:
Your message:
Any details you supply are not stored. You will receive no unsolicited e-mails as a result.
Back
Send
Last update: 24/04/2009 09:27:59
Links
Exhibition "Out of this World"
International Year of Astronomy 2009
CosmicDiary - Astronomy Blogs
Daily Podcasts at 365 Days of Astronomy
ESA - IYA2009
Planetariumshow "Touching the Edge of the Universe"
Archive: Astronomy Questions of the Week