NASA’s SDO destroys a Sundog on launch.
Cool video.

The Solar Dynamics Observatory was launched, successfully, Feb 11th.

On the way up, the rocket crossed a high altitude layer of ice crystals – a wispy cloud – which was showing a Sundog – the rocket visibly rippled the cloud as it passed through – looks very cool.

SDO video link

Full launch video – ripples at ~ 1:50+

see also GrrlScientist


  1. #1 maxwell
    February 19, 2010

    Wait, where was the sundog?

  2. #2 Steinn Sigurdsson
    February 19, 2010

    Glint to the right of the rocket trajectory as it crosses the cloud – “SDO video link” short video shows it slightly better.

  3. #3 Zarathustra
    February 27, 2010

    And some say there’s no evidence that human activity has atmospheric effects!

    Seriously, that’s so rare, what are the odds of it happening on a solar mission? Hmmm. Sounds portentous.

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