If you train yourself to pay attention to your surroundings you should be able to immediately point north without too much thinking. The next-level awareness is to point to the center of the galaxy at any time. Because the earth rotates during the day and orbits during the year, this direction changes constantly. You’ll need an app to help you. Galactic Compass is a free iPhone app that does only one thing: points toward the center of the galaxy. — KK

The GOES Image Viewer hosts the most up-to-date real time images of Earth available to the public. You can view and download satellite images that capture the entire visible disk of Earth and are updated every 10 to 15 minutes. I don’t know much about meteorology or geoscience, but I am an Earth lover, and it’s fascinating to be able to visualize weather patterns on a global scale. — CD 

I have been researching the state of space technology, and the current ambitions of various countries and companies for space exploration and settlement. By far the best source for official plans, programs in progress, and technological breakthroughs has been a stellar YouTube channel called The Space Race. It’s fun, visual, clear, insightful, succinct, and highly informative. Its back list of hundreds of videos have answered all my “future of space” questions. — KK