One of my favorite apps is Star Walk. For $2.99 this planetarium app from Vito Technologies will amaze and educate both kids and adults. No matter where you are in the world you will be able to hold your device up to the sky and it will tell you exactly what you are looking at. No more guessing if what you are seeing is Venus or Mars or Pluto. It tells you every star in the solar system, when the Sun and each of the planets rises and sets, as well as the elevation angle of each of those objects. And for the Moon it shows the current phase. It’s amazing – I wish I had this when I was a kid.