I like doing things manually. But I'm finally picking up on how incredibly useful all these new tools are.
11 Why is only one side of the Moon visible from Earth? Oct 7 '13
8 Why can't light escape from a black hole? Oct 29 '13
5 Long term development of Comets Oct 15 '13
3 How can the orbit of a Kuiper Belt Object be differentiated from the transit of a rogue planet? Oct 21 '13
2 What are shooting stars and how are they formed? Sep 30 '13