Meteor Show is app to shows you when the peak nights for the easiest to observe meteor showers. It also includes a brief description of the meteor shower and trivia to amaze your friends
Space The Final Frontier - Space - in its entirety it is incomprehensible, but science has come a very long way and we actually know quite a bit about it
Cosmic Distances - The easiest way to find out the distance and time it would take to travel within our solar system, with detailed information about all of our planets in a fun and easy way
Blue Moon is a small utility to know information about the current moon phase.
Information like age and phase of the moon, current angle and illuminated side ratio, as well as other moon related information, all sporting a graphical representation of the current lunar phase.
Furthermore, you can get random moon related pictures from Flickr
Riding The Sun - Look at the events taking place in the sun at all times thanks to information that is received by the Solar and Heliospheric Observatory "as well known as SOHO