'Tis the season for hokey, holiday-related science! This year's Christmas/science tie-in comes via NASA, who provided us all with the holiday present of a Christmas-tree-shaped nebula. Located 170,000 light years away, this nebula spawned the super-massive white stars to the right of the tree.
The end-of-the-year holidays are a time of tradition and ritual. The waiting on line at the airport. The flight getting delayed due to snow. And of course, the annual Thanksgiving vacation lost luggage.
To help alleviate that holiday travel-related stress, Google is giving a holiday present to every traveler who passes through 47 specially designated airports: free Wi-Fi.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.