The boiling, erupting Sun
I really liked the images here and thought that they were really well done as were the close up shots. Putting that together was rather cool. I further like how Phil takes an image of the Earth to show you how big those plumes really are. Imagine a million Earth's fitting inside the Sun! This entry makes you realize how small we really are, especially if you compare our Sun to other stars out there as this video does at YouTube. This video by the American Museum of Natural History further shows how small we are. Look at how much we haven't even looked at yet and you realize how many more wonderful discoveries await for those who move forward with a career in astronomy.