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  • Re: Astrophotography

    Hi Debra, I'm your friendly systems admin on these boards. I hope you don't mind me chiming in. I do some astrophotography as a hobby (although I have not had time to do any in the last 3 years). Here is a photo of the Sun in H-alpha I've taken during the last Venus transit. The black round...
    Posted to Scientist's Hobbies (Forum) by Igor Ruderman on 10-17-2011

  • Re: solar flares and magnetic fields

    Hello! Some of the other planets have strong magnetic fields, just like the Earth does. Venus and Mars do not have strong, global magnetic fields. Mars only has weak remnants of a magnetic field in rocks that were formed long ago when Mars may have had a much stronger, global magnetic field. It is kind...
    Posted to Facts about the Sun (Forum) by Kris Sigsbee on 03-25-2011

  • WHY MARS?

    My students would like to know why has NASA travelled to Mars and not to Venus? Thank you.
    Posted to Other (Forum) by Anonymous on 10-21-2010

  • Re: aurora on venus

    Hi Teri, Scientists have observed phenomena similar to Earth's aurora on Jupiter and Saturn using telescopes and imagers on board spacecraft. No one has seen aurora on Venus because the planet Venus does not have an intrinsic, global magnetic field like Earth, Jupiter, and Saturn do. However, scientists...
    Posted to Other (Forum) by Kris Sigsbee on 03-13-2009

  • aurora on venus

    Teri S (Fox) Have auroras ever been observed on the planet Venus, if so, how?
    Posted to Other (Forum) by Anonymous on 03-13-2009
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