====== Campaign Website ======

  * [[https://halo-ac3.de/|HALO-(AC)³ Website]]

====== Slack ======

  * [[https://join.slack.com/t/halo-ac/shared_invite/zt-m3bvdo1s-OX0y3KdBUBuSVTbvNagX9A|HALO-(AC)³ on Slack]]


====== Social Media ======
 
  * [[https://twitter.com/HALOAC3|HALO-(AC)³ on Twitter (#HALOAC3)]]



====== (AC)³ Project Page ======

  * [[http://www.ac3-tr.de/overview/observations/halo-ac3/|HALO-(AC)³ on (AC)³ Website]]


====== Are Polar 5 & 6 flying? ======

  * [[https://www.flightradar24.com/data/aircraft/c-gawi|Polar 5 on FlightRadar24]]
  * [[https://www.flightradar24.com/data/aircraft/c-ghgf|Polar 6 on FlightRadar24]]


====== Longyearbyen ======

  * [[http://toposvalbard.npolar.no/|Detailed Map]]

  * [[https://avinor.no/en/airport/svalbard-airport/|Svalbard Airport ]]
  * [[http://www.visitsvalbard.com/|www.visitsvalbard.com ]]