See how tiny Mercury is (radius: 1,516 miles) compared to the Sun (radius: 432,288 mi). In spite of it's small size it can be seen when it crosses over our local star. I'm not only impressed at Mercury's size, but also impressed with how non violent is the fire on the sun's surface. Amazing stuff.
http://www.popsci.com/best-views-mercur ... across-sun
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