Photograph by Kari Tikkanen.
Photography contest, Honorable Mention.
Noctilucent clouds. Mr Tikkanen writes that these "are bluish clouds located in the
mesosphere at altitudes of around 80 kilometers. Relative recent
appearance and their gradual increase may be linked to climate change."
5 Comments
Carl Drews · 22 September 2014
Excellent photo!
What kind of permission/license covers these photos published at Panda's Thumb from the photography contest? Does the original photographer retain copyright with permission granted to reproduce here only? Or is it Creative Commons by Attribution? Or what?
Matt Young · 22 September 2014
Rule 9 of the contest stipulates,
By submitting a photograph, you stipulate that you are the owner of the copyright and grant The Pandaâs Thumb a nonexclusive license to publish the photograph on its blog. The photograph will be subject to a Creative Commons Attribution-Noncommercial-No Derivatives license.
TomS · 30 September 2014
The explanation of noctilucent clouds being illuminated by the Sun below the horizon is dependent upon the hypothesis that the Earth is not flat (at least not in direction of the Sun).
Just Bob · 30 September 2014
TomS said:
The explanation of noctilucent clouds being illuminated by the Sun below the horizon is dependent upon the hypothesis that the Earth is not flat (at least not in direction of the Sun).
No, no, after the sun sinks UNDER the ground, somewhere way out there, it shines UP through the ground for awhile until it gets too deep. [/bible science thinking]
Henry J · 30 September 2014
No, no, after the sun sinks UNDER the ground, somewhere way out there, it shines UP through the ground for awhile until it gets too deep. [/bible science thinking]
5 Comments
Carl Drews · 22 September 2014
Excellent photo!
What kind of permission/license covers these photos published at Panda's Thumb from the photography contest? Does the original photographer retain copyright with permission granted to reproduce here only? Or is it Creative Commons by Attribution? Or what?
Matt Young · 22 September 2014
TomS · 30 September 2014
The explanation of noctilucent clouds being illuminated by the Sun below the horizon is dependent upon the hypothesis that the Earth is not flat (at least not in direction of the Sun).
Just Bob · 30 September 2014
Henry J · 30 September 2014