new photo blog

i started this blog in 2006, and it's shifted along with my interests through the years. it's been witness to a lot of learning for me...

still, i feel that i need a home for my photography -- so from now on, i'll be posting my pictures on the journal on my reworked website. if you like my photos, you might decide to follow me there!

my first post is here -- check it out!

as for this blog, i'm not sure what will happen. i don't think i'm willing to let it go, and certainly i'll keep it as an archive, but i need some time to figure it out.

for those of you that pop in from time to time, thanks for the visits and encouragement.

Tuesday, November 24, 2009

saturnian northern lights

northern aurora in motion:

click to source at ciclops!
'an aurora, shining high above the northern part of saturn, moves from the night side to the day side of the planet in this movie recorded by cassini.

these observations, taken over four days, represent the first visible-light video of saturn's auroras. they show tall auroral curtains, rapidly changing over time when viewed at the limb, or edge, of the planet's northern hemisphere. the sequence of images also reveals that saturn's auroral curtains, the sheet-like formations of light-emitting atmospheric molecules, stretch up along saturn's magnetic field and reach heights of more than 1,200 kilometers (750 miles) above the planet's limb. these are the tallest known "northern lights" in the solar system.'

read on....
press release here.

No comments:

Post a Comment