Large Comet to Buzz Mars, Impact Possible
Discovered on January 3, C/2013 A1 Siding Spring was typical of comet finds: a dim moving speck on a photograph. However, recent observations suggest that Comet Siding Spring could be extremely interesting indeed – its current orbit brings it only 37,000 km from Mars.
October is an active month for solar activity
The sun is going through a rather active period at the moment ahead of the peak of its 11-year cycle that will come next year. This month has already seen quite a few instances of ejected solar matter with coronal mass ejections, prominences and flares all making appearances.