On October 19th, German astronomer, Dr. Fritz Helmut Hemmerich captured the following footage of Comet C / 2013 A1, commonly known as "Comet Siding Spring," through his telescope as the comet passed by Mars. As you can see from the video, something from the comet plowed through Martian atmosphere, and ignited the Martian atmosphere like a solar coronal mass ejection, and sent out debris. This is preliminary information. I'm sure much more news is on the way. This is a huge event. An explosion of this magnitude could drastically affect our sister planet Mars' atmosphere.