Extra appreciation for the journey this letter took to arrive from Antarctica: 
pic.twitter.com/2cDKuWihSI
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
After temperature drops below -50°C, the components in a C-130 are no longer rated for operation and that's it, nobody can leave.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.