[meteorite-list] Comet close call: boon for science, but worry for craft orbiting Mars

[Paul H.]

Comet close call: boon for science, but worry 
for craft orbiting Mars, by Pete Spotts, 
Christian Science Monitor, March 28, 2014
http://www.csmonitor.com/Science/2014/0328/Comet-close-call-boon-for-science-but-worry-for-craft-orbiting-Mars-video

Mars-Bound Comet: Photos of Comet C/2013 A1 
Siding Spring (Gallery) Space.com, March 27, 2014‎
http://www.space.com/25257-mars-comet-siding-spring-photos-c2013-a1.html

Yours,

Paul H.