Comet Siding Spring: A Close Encounter with Mars
Why the open web links it
Explains the close flyby of Comet Siding Spring and NASA's response to observe and protect Mars orbiters.
Linked by 8 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including astronomy.com, scrippsnews.com, astronomynow.com, kosmonautix.cz, ascensionnow.co.uk.
Cited in 1 Wikipedia article, including C/2013 A1 (Siding Spring).