There has been many speculations on the Spiraling Light in the Norwegian Sky. Little was on the other hand told about the same phenomenon that occured in China and posted on youtube on the 29 of april 2009.

Webpage Above Top Secret News are considering technichal soursec such as EISCAT, HAARP and other.

If I look to more unusual sources I will find information that is said to come from Ashtar, KOS and Koton from the Galactic Federation.

Ashtar KOS and Korton on the StarGate opening in Norway

According to ZetaTalk:

The display over the skies of Norway are not noctilucient clouds, which are ice crystals in the clouds catching the light, nor are they earthquake lights. They are also not the smoking and curling light towers caused by methane gas released during Earth movements, suddenly catching fire while aloft in the sky. The Norway display is akin to the neon clouds seen on occasion since Planet X arrived in the inner solar system in 2003 and the grease in the tail of Planet X has polluted the Earth's atmosphere.

If I look to Benjamin Creme and the Share-International:

The enormous, spiral light with its glowing centre, seen over Norway on 9 December 2009, has excited and baffled thousands of Norwegians including astronomical experts. What does it mean?

On 12 December 2008 Share International Foundation announced that a large, bright ‘star’-like object would soon be seen in the sky. It is a sign heralding the imminent appearance of Maitreya, the World Teacher, on His first television interview, which will take place in the USA.

Korton:
I am Korton, Commander of the Cosmic Secret Service. I am from Mars and I have a coordinated effort with KOS on Earth and Soltec with intergalactic Communications and Captain Ashtar with the Galactic Federation.

We have brought through this StarGate portal several MotherShips. Some are from Mars and several are from Andromeda. We have come here to occupy the StarGates of Earth in places like Iraq, Afghanistan and Pakistan. We are preparing for a time of World Peace. We will be sending the Soldiers home and they will no longer have to defend the StarGates. We are in place to do that as Earth goes through this transition. This Operation will last 72 hours when we round up all the remaining dark hats and escort them out of Earth's atmosphere to their new destination. We are the back up for an operation which has continued for some months now. We bring the muscle to finish the job, meaning there are more resources to help with the removals. As we finish this at the end of 12:12 there will be a shift into a Higher Vibration. We are honored to be here and assist this way now. ~Korton

Ashtar:

Greetings. There are amazing changes happening now, and what did you expect? When you saw the videotape of the vortex portal in Norway, did you feel excited? Did you feel the Galactic Federation is out there with our Ships? Did you feel that this might all be happening? Because it is! This story about Arrests, Decloakings and NESARA has been talked about for a long time. Now the time is here, why would you be surprised that a portal opened to let in more Ships? If you are experiencing a heart opening with this news, that is as it should be. Go with the feeling. Use this energy to dream up the changes you would like to see in your world and focus on them now. Allow those dreams to float into manifestation, with joy! We have been working behind the scenes with these Galactic Forces and we continue this partnership as we prepare for the Disclosure and Announcements.
Peace, ~Ashtar

source; http://grtintel.blogspot.com/

If I look to Benjamin Creme and the Share-International:

The enormous, spiral light with its glowing centre, seen over Norway on 9 December 2009, has excited and baffled thousands of Norwegians including astronomical experts. What does it mean?

On 12 December 2008 Share International Foundation announced that a large, bright ‘star’-like object would soon be seen in the sky. It is a sign heralding the imminent appearance of Maitreya, the World Teacher, on His first television interview, which will take place in the USA.

The ‘star’ is really one of four enormous spacecraft placed around the world. Since December 2008 numerous sightings of the ‘star’ have been reported on YouTube and television news programmes. Share International magazine has received hundreds of photographs showing the ‘star’ in a variety of stunning colours and shapes.

The huge spiral manifestation over Norway is an extension of the work of these spacecraft and is irrefutable evidence of their reality. Our information is that further such manifestations are planned for the near future...........read more