Researchers have been adding seeds to the Svalbard Global Seed Vault - or Doomsday Vault - since 2008. Now, for the first time, they've taken seeds out.
Thanks to all friends who shared your fantastic images of the October 2015 full moon - Northern Hemisphere's Hunter’s Moon - shining down on all the world.
For the past three years, Antarctic sea ice at maximum set records. This year, that didn't happen, and a sea ice scientist called it "a return toward normalcy."