I enjoyed your star pictures and have on my list one day to observe stars in the Southern Hemisphere. I was just looking at pictures of aurora in Antartica from May 30th. Spaceweather.com said to be on the lookout for more aurora around June 4th. Hopefully it won't be too cloudy and you can get a chance to see it, since we missed it in Fairbanks.
Enjoy the last of your expedition in that amazing world!