Published on Jun 7, 2013
Visit http://science.nasa.gov/ for breaking science news.
Glowing electric-blue at the edge of space, noctilucent clouds have surprised researchers by appearing early this year. The unexpected apparition hints at a change in the “teleconnections” of Earth’s atmosphere.
- The Rarest Clouds In The World May Have Origins In Space… The Mystery Of The Noctilucent Clouds (fox41blogs.typepad.com)
- Rare noctilucent clouds seen over Northern Ireland (phys.org)
- Noctilucent Clouds – Electric-Blue Visitors From The Twilight Zone (universetoday.com)
- Noctilucent cloud season is here! (earthsky.org)