Will Comet C/2013 A1 (Siding Spring) Hit Mars?
http://newsdoors.blogspot.com/2013/02/will-comet-c2013-a1-siding-spring-hit.html
Image of the JPL Orbit widget which shows Mars and comet C/2013 A1 on top of each other on October 19, 2014, but note the caveat in the applet that says “The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstance”
A reader pointed out that the JPL Orbit Diagram for cometC/2013 A1 (Siding Spring) shows the Comet and Mars on top of each other on October 19, 2014 (see the diagram here). Does this indicate an impact between the comet and Mars?
Read More: http://newsdoors.blogspot.com/2013/02/will-comet-c2013-a1-siding-spring-hit.html
