Complex sentence: His image, "Orion, from Head to Toes" was selected by "Discover" Magazine's Bad Astronomy, as the best astronomy picture of 2010, which was the first time this award was given to an amateur astronomer.
Split into simpler sentences: His image, "Orion, from Head to Toes" was selected by "Discover" Magazine's Bad Astronomy, as the best astronomy picture of 2010. It was the first time this award was given to an amateur astronomer.